Finding the Fourth Proportional to 87.41, 131.08 and 63.08
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Solution
The fourth proportional to 87.41, 131.08 and 63.08 is: 94.58
Step by Step Solution
- Step 1: Write the proportion equation
87.41 : 131.08 = 63.08 : x - Step 2: Convert to fraction form
87.41/131.08 = 63.08/x - Step 3: Cross multiply
87.41x = 131.08 × 63.08 - Step 4: Simplify right side
87.41x = 8,267.71 - Step 5: Solve for x
x = 8,267.71/87.41 - Step 6: Final answer
x = 94.58
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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.