33.5 is what percent of 1990 - 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 1990 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 1990, so we can write it down as 100%=1990.
4. We know, that x% equals 33.5 of the output value, so we can write it down as x%=33.5.
5. Now we have two simple equations:
1) 100%=1990
2) x%=33.5
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%=1990/33.5
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 33.5 is what percent of 1990

100%/x%=1990/33.5
(100/x)*x=(1990/33.5)*x       - we multiply both sides of the equation by x
100=59.402985074627*x       - we divide both sides of the equation by (59.402985074627) to get x
100/59.402985074627=x
1.6834170854271=x
x=1.6834170854271

now we have:
33.5 is 1.6834170854271% of 1990