Finding the Fourth Proportional to 87,573.99, 131,373.27 and 28,390.53
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Solution
The fourth proportional to 87,573.99, 131,373.27 and 28,390.53 is: 42,589.78
Step by Step Solution
- Step 1: Write the proportion equation
87,573.99 : 131,373.27 = 28,390.53 : x - Step 2: Convert to fraction form
87,573.99/131,373.27 = 28,390.53/x - Step 3: Cross multiply
87,573.99x = 131,373.27 × 28,390.53 - Step 4: Simplify right side
87,573.99x = 3,729,756,763.13 - Step 5: Solve for x
x = 3,729,756,763.13/87,573.99 - Step 6: Final answer
x = 42,589.78
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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.