Finding the Fourth Proportional to 85,414.11, 117,872.35 and 47,174.62
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Solution
The fourth proportional to 85,414.11, 117,872.35 and 47,174.62 is: 65,101.46
Step by Step Solution
- Step 1: Write the proportion equation
85,414.11 : 117,872.35 = 47,174.62 : x - Step 2: Convert to fraction form
85,414.11/117,872.35 = 47,174.62/x - Step 3: Cross multiply
85,414.11x = 117,872.35 × 47,174.62 - Step 4: Simplify right side
85,414.11x = 5,560,583,319.76 - Step 5: Solve for x
x = 5,560,583,319.76/85,414.11 - Step 6: Final answer
x = 65,101.46
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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.