Finding the Fourth Proportional to 82,716.75, 124,087.44 and 38,347.99
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Solution
The fourth proportional to 82,716.75, 124,087.44 and 38,347.99 is: 57,527.69
Step by Step Solution
- Step 1: Write the proportion equation
82,716.75 : 124,087.44 = 38,347.99 : x - Step 2: Convert to fraction form
82,716.75/124,087.44 = 38,347.99/x - Step 3: Cross multiply
82,716.75x = 124,087.44 × 38,347.99 - Step 4: Simplify right side
82,716.75x = 4,758,503,287.81 - Step 5: Solve for x
x = 4,758,503,287.81/82,716.75 - Step 6: Final answer
x = 57,527.69
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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.