You are comparing perp w/ victim stats. You are also comparing female victimization rates w/ Google's population (only 30% female, even less in higher levels where most of these 48 get dismissed from). I also think there are ~90K employees.

One dude can harass lots of women (as is usually the case). These 48 could have very easily been responsible for 20+ incidents each. And there are probably many more perps who have gone unpunished.

That said, male Google employees are probably less likely to sexually harass. They tend to be more nerdy, introverted, and less masculine(lower testosterone, less aggressive).

Edit: I shouldn't have used a word like masculine, whose definition is largely debated. I meant masculine in the hormonal sense.