Finding the Fourth Proportional to 58.09, 87.24 and 40.99
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Solution
The fourth proportional to 58.09, 87.24 and 40.99 is: 61.56
Step by Step Solution
- Step 1: Write the proportion equation
58.09 : 87.24 = 40.99 : x - Step 2: Convert to fraction form
58.09/87.24 = 40.99/x - Step 3: Cross multiply
58.09x = 87.24 × 40.99 - Step 4: Simplify right side
58.09x = 3,575.97 - Step 5: Solve for x
x = 3,575.97/58.09 - Step 6: Final answer
x = 61.56
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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.