Finding the Fourth Proportional to 83.13, 124.61 and 29.00
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Solution
The fourth proportional to 83.13, 124.61 and 29.00 is: 43.46
Step by Step Solution
- Step 1: Write the proportion equation
83.13 : 124.61 = 29.00 : x - Step 2: Convert to fraction form
83.13/124.61 = 29.00/x - Step 3: Cross multiply
83.13x = 124.61 × 29.00 - Step 4: Simplify right side
83.13x = 3,613.14 - Step 5: Solve for x
x = 3,613.14/83.13 - Step 6: Final answer
x = 43.46
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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.