Finding the Fourth Proportional to 82,939.21, 124,404.49 and 26,778.26
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Solution
The fourth proportional to 82,939.21, 124,404.49 and 26,778.26 is: 40,165.99
Step by Step Solution
- Step 1: Write the proportion equation
82,939.21 : 124,404.49 = 26,778.26 : x - Step 2: Convert to fraction form
82,939.21/124,404.49 = 26,778.26/x - Step 3: Cross multiply
82,939.21x = 124,404.49 × 26,778.26 - Step 4: Simplify right side
82,939.21x = 3,331,335,644.50 - Step 5: Solve for x
x = 3,331,335,644.50/82,939.21 - Step 6: Final answer
x = 40,165.99
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1.5x scale
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.