91 is what percent of 456 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 456 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 456, so we can write it down as 100%=456.
4. We know, that x% equals 91 of the output value, so we can write it down as x%=91.
5. Now we have two simple equations:
1) 100%=456
2) x%=91
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=456/91
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 91 is what percent of 456

100%/x%=456/91
(100/x)*x=(456/91)*x       - we multiply both sides of the equation by x
100=5.010989010989*x       - we divide both sides of the equation by (5.010989010989) to get x
100/5.010989010989=x
19.956140350877=x
x=19.956140350877

now we have:
91 is 19.956140350877% of 456