Finding the Fourth Proportional to 82,891.06, 124,337.44 and 66,356.20
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Solution
The fourth proportional to 82,891.06, 124,337.44 and 66,356.20 is: 99,534.98
Step by Step Solution
- Step 1: Write the proportion equation
82,891.06 : 124,337.44 = 66,356.20 : x - Step 2: Convert to fraction form
82,891.06/124,337.44 = 66,356.20/x - Step 3: Cross multiply
82,891.06x = 124,337.44 × 66,356.20 - Step 4: Simplify right side
82,891.06x = 8,250,560,036.13 - Step 5: Solve for x
x = 8,250,560,036.13/82,891.06 - Step 6: Final answer
x = 99,534.98
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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.