Finding the Fourth Proportional to 82,292.68, 123,439.20 and 29,739.28
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Solution
The fourth proportional to 82,292.68, 123,439.20 and 29,739.28 is: 44,608.99
Step by Step Solution
- Step 1: Write the proportion equation
82,292.68 : 123,439.20 = 29,739.28 : x - Step 2: Convert to fraction form
82,292.68/123,439.20 = 29,739.28/x - Step 3: Cross multiply
82,292.68x = 123,439.20 × 29,739.28 - Step 4: Simplify right side
82,292.68x = 3,670,992,931.78 - Step 5: Solve for x
x = 3,670,992,931.78/82,292.68 - Step 6: Final answer
x = 44,608.99
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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.