Finding the Fourth Proportional to 87,396.06, 131,060.70 and 31,225.62
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Solution
The fourth proportional to 87,396.06, 131,060.70 and 31,225.62 is: 46,826.50
Step by Step Solution
- Step 1: Write the proportion equation
87,396.06 : 131,060.70 = 31,225.62 : x - Step 2: Convert to fraction form
87,396.06/131,060.70 = 31,225.62/x - Step 3: Cross multiply
87,396.06x = 131,060.70 × 31,225.62 - Step 4: Simplify right side
87,396.06x = 4,092,451,615.13 - Step 5: Solve for x
x = 4,092,451,615.13/87,396.06 - Step 6: Final answer
x = 46,826.50
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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.