Finding the Fourth Proportional to 80,153.92, 120,202.72 and 27,569.76
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Solution
The fourth proportional to 80,153.92, 120,202.72 and 27,569.76 is: 41,344.95
Step by Step Solution
- Step 1: Write the proportion equation
80,153.92 : 120,202.72 = 27,569.76 : x - Step 2: Convert to fraction form
80,153.92/120,202.72 = 27,569.76/x - Step 3: Cross multiply
80,153.92x = 120,202.72 × 27,569.76 - Step 4: Simplify right side
80,153.92x = 3,313,960,141.75 - Step 5: Solve for x
x = 3,313,960,141.75/80,153.92 - Step 6: Final answer
x = 41,344.95
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1.5x scale
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.