Finding the Fourth Proportional to 75,117.90, 103,732.95 and 48,306.97
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Solution
The fourth proportional to 75,117.90, 103,732.95 and 48,306.97 is: 66,708.79
Step by Step Solution
- Step 1: Write the proportion equation
75,117.90 : 103,732.95 = 48,306.97 : x - Step 2: Convert to fraction form
75,117.90/103,732.95 = 48,306.97/x - Step 3: Cross multiply
75,117.90x = 103,732.95 × 48,306.97 - Step 4: Simplify right side
75,117.90x = 5,011,024,503.66 - Step 5: Solve for x
x = 5,011,024,503.66/75,117.90 - Step 6: Final answer
x = 66,708.79
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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.