Finding the Fourth Proportional to 88,387.92, 121,973.36 and 48,101.80
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Solution
The fourth proportional to 88,387.92, 121,973.36 and 48,101.80 is: 66,379.41
Step by Step Solution
- Step 1: Write the proportion equation
88,387.92 : 121,973.36 = 48,101.80 : x - Step 2: Convert to fraction form
88,387.92/121,973.36 = 48,101.80/x - Step 3: Cross multiply
88,387.92x = 121,973.36 × 48,101.80 - Step 4: Simplify right side
88,387.92x = 5,867,138,168.05 - Step 5: Solve for x
x = 5,867,138,168.05/88,387.92 - Step 6: Final answer
x = 66,379.41
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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.