Finding the Fourth Proportional to 87,773.79, 121,127.84 and 47,487.53
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Solution
The fourth proportional to 87,773.79, 121,127.84 and 47,487.53 is: 65,532.79
Step by Step Solution
- Step 1: Write the proportion equation
87,773.79 : 121,127.84 = 47,487.53 : x - Step 2: Convert to fraction form
87,773.79/121,127.84 = 47,487.53/x - Step 3: Cross multiply
87,773.79x = 121,127.84 × 47,487.53 - Step 4: Simplify right side
87,773.79x = 5,752,061,092.76 - Step 5: Solve for x
x = 5,752,061,092.76/87,773.79 - Step 6: Final answer
x = 65,532.79
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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.