Finding the Fourth Proportional to 82,115.87, 113,320.07 and 44,390.12
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Solution
The fourth proportional to 82,115.87, 113,320.07 and 44,390.12 is: 61,258.45
Step by Step Solution
- Step 1: Write the proportion equation
82,115.87 : 113,320.07 = 44,390.12 : x - Step 2: Convert to fraction form
82,115.87/113,320.07 = 44,390.12/x - Step 3: Cross multiply
82,115.87x = 113,320.07 × 44,390.12 - Step 4: Simplify right side
82,115.87x = 5,030,290,717.16 - Step 5: Solve for x
x = 5,030,290,717.16/82,115.87 - Step 6: Final answer
x = 61,258.45
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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.