Finding the Fourth Proportional to 71,631.60, 107,494.02 and 27,258.72
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Solution
The fourth proportional to 71,631.60, 107,494.02 and 27,258.72 is: 40,905.82
Step by Step Solution
- Step 1: Write the proportion equation
71,631.60 : 107,494.02 = 27,258.72 : x - Step 2: Convert to fraction form
71,631.60/107,494.02 = 27,258.72/x - Step 3: Cross multiply
71,631.60x = 107,494.02 × 27,258.72 - Step 4: Simplify right side
71,631.60x = 2,930,149,392.85 - Step 5: Solve for x
x = 2,930,149,392.85/71,631.60 - Step 6: Final answer
x = 40,905.82
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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.