Finding the Fourth Proportional to 75,174.18, 103,690.42 and 48,350.62
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Solution
The fourth proportional to 75,174.18, 103,690.42 and 48,350.62 is: 66,691.73
Step by Step Solution
- Step 1: Write the proportion equation
75,174.18 : 103,690.42 = 48,350.62 : x - Step 2: Convert to fraction form
75,174.18/103,690.42 = 48,350.62/x - Step 3: Cross multiply
75,174.18x = 103,690.42 × 48,350.62 - Step 4: Simplify right side
75,174.18x = 5,013,496,095.06 - Step 5: Solve for x
x = 5,013,496,095.06/75,174.18 - Step 6: Final answer
x = 66,691.73
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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.