Finding the Fourth Proportional to 87,175.62, 130,758.80 and 28,006.68
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Solution
The fourth proportional to 87,175.62, 130,758.80 and 28,006.68 is: 42,008.53
Step by Step Solution
- Step 1: Write the proportion equation
87,175.62 : 130,758.80 = 28,006.68 : x - Step 2: Convert to fraction form
87,175.62/130,758.80 = 28,006.68/x - Step 3: Cross multiply
87,175.62x = 130,758.80 × 28,006.68 - Step 4: Simplify right side
87,175.62x = 3,662,119,868.78 - Step 5: Solve for x
x = 3,662,119,868.78/87,175.62 - Step 6: Final answer
x = 42,008.53
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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.