Finding the Fourth Proportional to 67,640.62, 101,460.94 and 38,079.68
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Solution
The fourth proportional to 67,640.62, 101,460.94 and 38,079.68 is: 57,119.53
Step by Step Solution
- Step 1: Write the proportion equation
67,640.62 : 101,460.94 = 38,079.68 : x - Step 2: Convert to fraction form
67,640.62/101,460.94 = 38,079.68/x - Step 3: Cross multiply
67,640.62x = 101,460.94 × 38,079.68 - Step 4: Simplify right side
67,640.62x = 3,863,600,127.70 - Step 5: Solve for x
x = 3,863,600,127.70/67,640.62 - Step 6: Final answer
x = 57,119.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.