Finding the Fourth Proportional to 87.44, 131.18 and 46.92
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Solution
The fourth proportional to 87.44, 131.18 and 46.92 is: 70.39
Step by Step Solution
- Step 1: Write the proportion equation
87.44 : 131.18 = 46.92 : x - Step 2: Convert to fraction form
87.44/131.18 = 46.92/x - Step 3: Cross multiply
87.44x = 131.18 × 46.92 - Step 4: Simplify right side
87.44x = 6,154.97 - Step 5: Solve for x
x = 6,154.97/87.44 - Step 6: Final answer
x = 70.39
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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.