Finding the Fourth Proportional to 87,574.99, 131,374.77 and 28,391.53
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Solution
The fourth proportional to 87,574.99, 131,374.77 and 28,391.53 is: 42,591.28
Step by Step Solution
- Step 1: Write the proportion equation
87,574.99 : 131,374.77 = 28,391.53 : x - Step 2: Convert to fraction form
87,574.99/131,374.77 = 28,391.53/x - Step 3: Cross multiply
87,574.99x = 131,374.77 × 28,391.53 - Step 4: Simplify right side
87,574.99x = 3,729,930,723.70 - Step 5: Solve for x
x = 3,729,930,723.70/87,574.99 - Step 6: Final answer
x = 42,591.28
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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.