Finding the Fourth Proportional to 88,385.34, 121,974.30 and 48,101.70
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Solution
The fourth proportional to 88,385.34, 121,974.30 and 48,101.70 is: 66,381.72
Step by Step Solution
- Step 1: Write the proportion equation
88,385.34 : 121,974.30 = 48,101.70 : x - Step 2: Convert to fraction form
88,385.34/121,974.30 = 48,101.70/x - Step 3: Cross multiply
88,385.34x = 121,974.30 × 48,101.70 - Step 4: Simplify right side
88,385.34x = 5,867,171,186.31 - Step 5: Solve for x
x = 5,867,171,186.31/88,385.34 - Step 6: Final answer
x = 66,381.72
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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.