Finding the Fourth Proportional to 71,149.14, 106,719.84 and 36,087.88
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Solution
The fourth proportional to 71,149.14, 106,719.84 and 36,087.88 is: 54,129.86
Step by Step Solution
- Step 1: Write the proportion equation
71,149.14 : 106,719.84 = 36,087.88 : x - Step 2: Convert to fraction form
71,149.14/106,719.84 = 36,087.88/x - Step 3: Cross multiply
71,149.14x = 106,719.84 × 36,087.88 - Step 4: Simplify right side
71,149.14x = 3,851,292,779.54 - Step 5: Solve for x
x = 3,851,292,779.54/71,149.14 - Step 6: Final answer
x = 54,129.86
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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.