Finding the Fourth Proportional to 58.26, 87.39 and 31.23
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Solution
The fourth proportional to 58.26, 87.39 and 31.23 is: 46.85
Step by Step Solution
- Step 1: Write the proportion equation
58.26 : 87.39 = 31.23 : x - Step 2: Convert to fraction form
58.26/87.39 = 31.23/x - Step 3: Cross multiply
58.26x = 87.39 × 31.23 - Step 4: Simplify right side
58.26x = 2,729.19 - Step 5: Solve for x
x = 2,729.19/58.26 - Step 6: Final answer
x = 46.85
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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.