Finding the Fourth Proportional to 88,178.70, 121,686.87 and 47,893.14
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Solution
The fourth proportional to 88,178.70, 121,686.87 and 47,893.14 is: 66,092.68
Step by Step Solution
- Step 1: Write the proportion equation
88,178.70 : 121,686.87 = 47,893.14 : x - Step 2: Convert to fraction form
88,178.70/121,686.87 = 47,893.14/x - Step 3: Cross multiply
88,178.70x = 121,686.87 × 47,893.14 - Step 4: Simplify right side
88,178.70x = 5,827,966,301.07 - Step 5: Solve for x
x = 5,827,966,301.07/88,178.70 - Step 6: Final answer
x = 66,092.68
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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.