Finding the Fourth Proportional to 71,879.22, 107,868.85 and 29,759.52
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Solution
The fourth proportional to 71,879.22, 107,868.85 and 29,759.52 is: 44,659.99
Step by Step Solution
- Step 1: Write the proportion equation
71,879.22 : 107,868.85 = 29,759.52 : x - Step 2: Convert to fraction form
71,879.22/107,868.85 = 29,759.52/x - Step 3: Cross multiply
71,879.22x = 107,868.85 × 29,759.52 - Step 4: Simplify right side
71,879.22x = 3,210,125,198.95 - Step 5: Solve for x
x = 3,210,125,198.95/71,879.22 - Step 6: Final answer
x = 44,659.99
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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.