Finding the Fourth Proportional to 88,207.68, 121,724.46 and 47,921.52
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Solution
The fourth proportional to 88,207.68, 121,724.46 and 47,921.52 is: 66,130.54
Step by Step Solution
- Step 1: Write the proportion equation
88,207.68 : 121,724.46 = 47,921.52 : x - Step 2: Convert to fraction form
88,207.68/121,724.46 = 47,921.52/x - Step 3: Cross multiply
88,207.68x = 121,724.46 × 47,921.52 - Step 4: Simplify right side
88,207.68x = 5,833,221,144.38 - Step 5: Solve for x
x = 5,833,221,144.38/88,207.68 - Step 6: Final answer
x = 66,130.54
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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.