Finding the Fourth Proportional to 58.71, 87.99 and 31.62
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Solution
The fourth proportional to 58.71, 87.99 and 31.62 is: 47.39
Step by Step Solution
- Step 1: Write the proportion equation
58.71 : 87.99 = 31.62 : x - Step 2: Convert to fraction form
58.71/87.99 = 31.62/x - Step 3: Cross multiply
58.71x = 87.99 × 31.62 - Step 4: Simplify right side
58.71x = 2,782.24 - Step 5: Solve for x
x = 2,782.24/58.71 - Step 6: Final answer
x = 47.39
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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.