Finding the Fourth Proportional to 86,536.16, 129,691.12 and 44,380.64
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Solution
The fourth proportional to 86,536.16, 129,691.12 and 44,380.64 is: 66,512.95
Step by Step Solution
- Step 1: Write the proportion equation
86,536.16 : 129,691.12 = 44,380.64 : x - Step 2: Convert to fraction form
86,536.16/129,691.12 = 44,380.64/x - Step 3: Cross multiply
86,536.16x = 129,691.12 × 44,380.64 - Step 4: Simplify right side
86,536.16x = 5,755,774,907.92 - Step 5: Solve for x
x = 5,755,774,907.92/86,536.16 - Step 6: Final answer
x = 66,512.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.