Finding the Fourth Proportional to 83,418.96, 115,117.02 and 47,629.92
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Solution
The fourth proportional to 83,418.96, 115,117.02 and 47,629.92 is: 65,728.64
Step by Step Solution
- Step 1: Write the proportion equation
83,418.96 : 115,117.02 = 47,629.92 : x - Step 2: Convert to fraction form
83,418.96/115,117.02 = 47,629.92/x - Step 3: Cross multiply
83,418.96x = 115,117.02 × 47,629.92 - Step 4: Simplify right side
83,418.96x = 5,483,014,453.24 - Step 5: Solve for x
x = 5,483,014,453.24/83,418.96 - Step 6: Final answer
x = 65,728.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.