Finding the Fourth Proportional to 59.90, 89.87 and 52.99
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Solution
The fourth proportional to 59.90, 89.87 and 52.99 is: 79.50
Step by Step Solution
- Step 1: Write the proportion equation
59.90 : 89.87 = 52.99 : x - Step 2: Convert to fraction form
59.90/89.87 = 52.99/x - Step 3: Cross multiply
59.90x = 89.87 × 52.99 - Step 4: Simplify right side
59.90x = 4,761.72 - Step 5: Solve for x
x = 4,761.72/59.90 - Step 6: Final answer
x = 79.50
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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.