Finding the Fourth Proportional to 72,138.52, 108,197.68 and 24,752.84
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Solution
The fourth proportional to 72,138.52, 108,197.68 and 24,752.84 is: 37,125.79
Step by Step Solution
- Step 1: Write the proportion equation
72,138.52 : 108,197.68 = 24,752.84 : x - Step 2: Convert to fraction form
72,138.52/108,197.68 = 24,752.84/x - Step 3: Cross multiply
72,138.52x = 108,197.68 × 24,752.84 - Step 4: Simplify right side
72,138.52x = 2,678,199,861.41 - Step 5: Solve for x
x = 2,678,199,861.41/72,138.52 - Step 6: Final answer
x = 37,125.79
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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.