Finding the Fourth Proportional to 82,449.36, 123,590.77 and 39,691.99
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Solution
The fourth proportional to 82,449.36, 123,590.77 and 39,691.99 is: 59,497.89
Step by Step Solution
- Step 1: Write the proportion equation
82,449.36 : 123,590.77 = 39,691.99 : x - Step 2: Convert to fraction form
82,449.36/123,590.77 = 39,691.99/x - Step 3: Cross multiply
82,449.36x = 123,590.77 × 39,691.99 - Step 4: Simplify right side
82,449.36x = 4,905,563,198.73 - Step 5: Solve for x
x = 4,905,563,198.73/82,449.36 - Step 6: Final answer
x = 59,497.89
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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.