To determine what number 40.32 is 76.8% of, we need to make fractional proportions.
Put our current number, 40.32, over x, our total.
Put 76.8%, our current percent, over 100%, the total.
40.32/x = 76.8/100 is our proportion.
This is where things may get tricky if you don't pay attention.
Cross multiply the denominator (the bottom number) of 40.32/x by the numerator (top number) of 76.8/100.
It will look like this: 76.8x.
Now that we've done that, multiply the numerator of 40.32/x by the denominator of 76.8/100.
It will look like this: 40.32 x 100 = 4032.
Now our equation is:
76.8x = 4032.
To solve for x, divide both sides by 76.8.
76.8x / 76.8 = x
4032 / 76.8 = 52.5
x = 52.5
40.32 is 76.8% of 52.5.
I hope this helps!
