Finding the Fourth Proportional to 88,220.72, 121,761.96 and 50,520.08
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Solution
The fourth proportional to 88,220.72, 121,761.96 and 50,520.08 is: 69,727.66
Step by Step Solution
- Step 1: Write the proportion equation
88,220.72 : 121,761.96 = 50,520.08 : x - Step 2: Convert to fraction form
88,220.72/121,761.96 = 50,520.08/x - Step 3: Cross multiply
88,220.72x = 121,761.96 × 50,520.08 - Step 4: Simplify right side
88,220.72x = 6,151,423,960.16 - Step 5: Solve for x
x = 6,151,423,960.16/88,220.72 - Step 6: Final answer
x = 69,727.66
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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.