Finding the Fourth Proportional to 82,331.42, 123,399.11 and 39,609.99
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Solution
The fourth proportional to 82,331.42, 123,399.11 and 39,609.99 is: 59,367.83
Step by Step Solution
- Step 1: Write the proportion equation
82,331.42 : 123,399.11 = 39,609.99 : x - Step 2: Convert to fraction form
82,331.42/123,399.11 = 39,609.99/x - Step 3: Cross multiply
82,331.42x = 123,399.11 × 39,609.99 - Step 4: Simplify right side
82,331.42x = 4,887,837,315.06 - Step 5: Solve for x
x = 4,887,837,315.06/82,331.42 - Step 6: Final answer
x = 59,367.83
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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.