Finding the Fourth Proportional to 88,162.76, 121,663.35 and 49,921.31
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Solution
The fourth proportional to 88,162.76, 121,663.35 and 49,921.31 is: 68,890.70
Step by Step Solution
- Step 1: Write the proportion equation
88,162.76 : 121,663.35 = 49,921.31 : x - Step 2: Convert to fraction form
88,162.76/121,663.35 = 49,921.31/x - Step 3: Cross multiply
88,162.76x = 121,663.35 × 49,921.31 - Step 4: Simplify right side
88,162.76x = 6,073,594,115.15 - Step 5: Solve for x
x = 6,073,594,115.15/88,162.76 - Step 6: Final answer
x = 68,890.70
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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.