Finding the Fourth Proportional to 82,451.25, 123,670.67 and 26,289.09
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Solution
The fourth proportional to 82,451.25, 123,670.67 and 26,289.09 is: 39,431.65
Step by Step Solution
- Step 1: Write the proportion equation
82,451.25 : 123,670.67 = 26,289.09 : x - Step 2: Convert to fraction form
82,451.25/123,670.67 = 26,289.09/x - Step 3: Cross multiply
82,451.25x = 123,670.67 × 26,289.09 - Step 4: Simplify right side
82,451.25x = 3,251,189,242.54 - Step 5: Solve for x
x = 3,251,189,242.54/82,451.25 - Step 6: Final answer
x = 39,431.65
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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.