Finding the Fourth Proportional to 80,956.70, 121,434.20 and 27,648.06
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Solution
The fourth proportional to 80,956.70, 121,434.20 and 27,648.06 is: 41,471.80
Step by Step Solution
- Step 1: Write the proportion equation
80,956.70 : 121,434.20 = 27,648.06 : x - Step 2: Convert to fraction form
80,956.70/121,434.20 = 27,648.06/x - Step 3: Cross multiply
80,956.70x = 121,434.20 × 27,648.06 - Step 4: Simplify right side
80,956.70x = 3,357,419,909.41 - Step 5: Solve for x
x = 3,357,419,909.41/80,956.70 - Step 6: Final answer
x = 41,471.80
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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.