Finding the Fourth Proportional to 87,882.28, 121,276.94 and 47,595.12
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Solution
The fourth proportional to 87,882.28, 121,276.94 and 47,595.12 is: 65,680.94
Step by Step Solution
- Step 1: Write the proportion equation
87,882.28 : 121,276.94 = 47,595.12 : x - Step 2: Convert to fraction form
87,882.28/121,276.94 = 47,595.12/x - Step 3: Cross multiply
87,882.28x = 121,276.94 × 47,595.12 - Step 4: Simplify right side
87,882.28x = 5,772,190,512.53 - Step 5: Solve for x
x = 5,772,190,512.53/87,882.28 - Step 6: Final answer
x = 65,680.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.