Finding the Fourth Proportional to 58.23, 87.36 and 42.99
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Solution
The fourth proportional to 58.23, 87.36 and 42.99 is: 64.50
Step by Step Solution
- Step 1: Write the proportion equation
58.23 : 87.36 = 42.99 : x - Step 2: Convert to fraction form
58.23/87.36 = 42.99/x - Step 3: Cross multiply
58.23x = 87.36 × 42.99 - Step 4: Simplify right side
58.23x = 3,755.61 - Step 5: Solve for x
x = 3,755.61/58.23 - Step 6: Final answer
x = 64.50
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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.