Finding the Fourth Proportional to 82,919.75, 124,399.07 and 27,515.75
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Solution
The fourth proportional to 82,919.75, 124,399.07 and 27,515.75 is: 41,280.08
Step by Step Solution
- Step 1: Write the proportion equation
82,919.75 : 124,399.07 = 27,515.75 : x - Step 2: Convert to fraction form
82,919.75/124,399.07 = 27,515.75/x - Step 3: Cross multiply
82,919.75x = 124,399.07 × 27,515.75 - Step 4: Simplify right side
82,919.75x = 3,422,933,572.77 - Step 5: Solve for x
x = 3,422,933,572.77/82,919.75 - Step 6: Final answer
x = 41,280.08
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1.5x scale
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.