Finding the Fourth Proportional to 81,337.92, 121,998.24 and 39,204.96
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Solution
The fourth proportional to 81,337.92, 121,998.24 and 39,204.96 is: 58,803.28
Step by Step Solution
- Step 1: Write the proportion equation
81,337.92 : 121,998.24 = 39,204.96 : x - Step 2: Convert to fraction form
81,337.92/121,998.24 = 39,204.96/x - Step 3: Cross multiply
81,337.92x = 121,998.24 × 39,204.96 - Step 4: Simplify right side
81,337.92x = 4,782,936,119.27 - Step 5: Solve for x
x = 4,782,936,119.27/81,337.92 - Step 6: Final answer
x = 58,803.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.