Finding the Fourth Proportional to 71.12, 98.17 and 41.63
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Solution
The fourth proportional to 71.12, 98.17 and 41.63 is: 57.45
Step by Step Solution
- Step 1: Write the proportion equation
71.12 : 98.17 = 41.63 : x - Step 2: Convert to fraction form
71.12/98.17 = 41.63/x - Step 3: Cross multiply
71.12x = 98.17 × 41.63 - Step 4: Simplify right side
71.12x = 4,086.22 - Step 5: Solve for x
x = 4,086.22/71.12 - Step 6: Final answer
x = 57.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.