Finding the Fourth Proportional to 82,064.74, 113,221.07 and 49,809.53
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Solution
The fourth proportional to 82,064.74, 113,221.07 and 49,809.53 is: 68,719.99
Step by Step Solution
- Step 1: Write the proportion equation
82,064.74 : 113,221.07 = 49,809.53 : x - Step 2: Convert to fraction form
82,064.74/113,221.07 = 49,809.53/x - Step 3: Cross multiply
82,064.74x = 113,221.07 × 49,809.53 - Step 4: Simplify right side
82,064.74x = 5,639,488,282.80 - Step 5: Solve for x
x = 5,639,488,282.80/82,064.74 - Step 6: Final answer
x = 68,719.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.