Finding the Fourth Proportional to 76,909.26, 115,363.20 and 24,318.78
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Solution
The fourth proportional to 76,909.26, 115,363.20 and 24,318.78 is: 36,477.95
Step by Step Solution
- Step 1: Write the proportion equation
76,909.26 : 115,363.20 = 24,318.78 : x - Step 2: Convert to fraction form
76,909.26/115,363.20 = 24,318.78/x - Step 3: Cross multiply
76,909.26x = 115,363.20 × 24,318.78 - Step 4: Simplify right side
76,909.26x = 2,805,492,280.90 - Step 5: Solve for x
x = 2,805,492,280.90/76,909.26 - Step 6: Final answer
x = 36,477.95
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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.