Finding the Fourth Proportional to 82,754.20, 124,161.36 and 40,629.79
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Solution
The fourth proportional to 82,754.20, 124,161.36 and 40,629.79 is: 60,959.44
Step by Step Solution
- Step 1: Write the proportion equation
82,754.20 : 124,161.36 = 40,629.79 : x - Step 2: Convert to fraction form
82,754.20/124,161.36 = 40,629.79/x - Step 3: Cross multiply
82,754.20x = 124,161.36 × 40,629.79 - Step 4: Simplify right side
82,754.20x = 5,044,649,982.91 - Step 5: Solve for x
x = 5,044,649,982.91/82,754.20 - Step 6: Final answer
x = 60,959.44
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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.