3.99 is what percent of 47 - 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 47 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 47, so we can write it down as 100%=47.
4. We know, that x% equals 3.99 of the output value, so we can write it down as x%=3.99.
5. Now we have two simple equations:
1) 100%=47
2) x%=3.99
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%=47/3.99
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 3.99 is what percent of 47

100%/x%=47/3.99
(100/x)*x=(47/3.99)*x       - we multiply both sides of the equation by x
100=11.779448621554*x       - we divide both sides of the equation by (11.779448621554) to get x
100/11.779448621554=x
8.4893617021277=x
x=8.4893617021277

now we have:
3.99 is 8.4893617021277% of 47