Finding the Fourth Proportional to 58.26, 87.36 and 31.18
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Solution
The fourth proportional to 58.26, 87.36 and 31.18 is: 46.75
Step by Step Solution
- Step 1: Write the proportion equation
58.26 : 87.36 = 31.18 : x - Step 2: Convert to fraction form
58.26/87.36 = 31.18/x - Step 3: Cross multiply
58.26x = 87.36 × 31.18 - Step 4: Simplify right side
58.26x = 2,723.88 - Step 5: Solve for x
x = 2,723.88/58.26 - Step 6: Final answer
x = 46.75
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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.