Finding the Fourth Proportional to 85,414.48, 117,872.87 and 47,174.99
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Solution
The fourth proportional to 85,414.48, 117,872.87 and 47,174.99 is: 65,101.98
Step by Step Solution
- Step 1: Write the proportion equation
85,414.48 : 117,872.87 = 47,174.99 : x - Step 2: Convert to fraction form
85,414.48/117,872.87 = 47,174.99/x - Step 3: Cross multiply
85,414.48x = 117,872.87 × 47,174.99 - Step 4: Simplify right side
85,414.48x = 5,560,651,463.52 - Step 5: Solve for x
x = 5,560,651,463.52/85,414.48 - Step 6: Final answer
x = 65,101.98
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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.