Finding the Fourth Proportional to 75,306.48, 103,838.94 and 48,411.84
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Solution
The fourth proportional to 75,306.48, 103,838.94 and 48,411.84 is: 66,754.34
Step by Step Solution
- Step 1: Write the proportion equation
75,306.48 : 103,838.94 = 48,411.84 : x - Step 2: Convert to fraction form
75,306.48/103,838.94 = 48,411.84/x - Step 3: Cross multiply
75,306.48x = 103,838.94 × 48,411.84 - Step 4: Simplify right side
75,306.48x = 5,027,034,149.05 - Step 5: Solve for x
x = 5,027,034,149.05/75,306.48 - Step 6: Final answer
x = 66,754.34
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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.