Finding the Fourth Proportional to 58.14, 87.19 and 31.07
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Solution
The fourth proportional to 58.14, 87.19 and 31.07 is: 46.59
Step by Step Solution
- Step 1: Write the proportion equation
58.14 : 87.19 = 31.07 : x - Step 2: Convert to fraction form
58.14/87.19 = 31.07/x - Step 3: Cross multiply
58.14x = 87.19 × 31.07 - Step 4: Simplify right side
58.14x = 2,708.99 - Step 5: Solve for x
x = 2,708.99/58.14 - Step 6: Final answer
x = 46.59
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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.