Finding the Fourth Proportional to 88.91, 133.20 and 40.71
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Solution
The fourth proportional to 88.91, 133.20 and 40.71 is: 60.99
Step by Step Solution
- Step 1: Write the proportion equation
88.91 : 133.20 = 40.71 : x - Step 2: Convert to fraction form
88.91/133.20 = 40.71/x - Step 3: Cross multiply
88.91x = 133.20 × 40.71 - Step 4: Simplify right side
88.91x = 5,422.57 - Step 5: Solve for x
x = 5,422.57/88.91 - Step 6: Final answer
x = 60.99
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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.