Finding the Fourth Proportional to 71.00, 106.49 and 40.55
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Solution
The fourth proportional to 71.00, 106.49 and 40.55 is: 60.82
Step by Step Solution
- Step 1: Write the proportion equation
71.00 : 106.49 = 40.55 : x - Step 2: Convert to fraction form
71.00/106.49 = 40.55/x - Step 3: Cross multiply
71.00x = 106.49 × 40.55 - Step 4: Simplify right side
71.00x = 4,318.54 - Step 5: Solve for x
x = 4,318.54/71.00 - Step 6: Final answer
x = 60.82
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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.