Finding the Fourth Proportional to 82.71, 124.11 and 34.65
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Solution
The fourth proportional to 82.71, 124.11 and 34.65 is: 51.99
Step by Step Solution
- Step 1: Write the proportion equation
82.71 : 124.11 = 34.65 : x - Step 2: Convert to fraction form
82.71/124.11 = 34.65/x - Step 3: Cross multiply
82.71x = 124.11 × 34.65 - Step 4: Simplify right side
82.71x = 4,300.41 - Step 5: Solve for x
x = 4,300.41/82.71 - Step 6: Final answer
x = 51.99
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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.