Finding the Fourth Proportional to 87,685.44, 120,976.86 and 49,440.18
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Solution
The fourth proportional to 87,685.44, 120,976.86 and 49,440.18 is: 68,211.07
Step by Step Solution
- Step 1: Write the proportion equation
87,685.44 : 120,976.86 = 49,440.18 : x - Step 2: Convert to fraction form
87,685.44/120,976.86 = 49,440.18/x - Step 3: Cross multiply
87,685.44x = 120,976.86 × 49,440.18 - Step 4: Simplify right side
87,685.44x = 5,981,117,734.23 - Step 5: Solve for x
x = 5,981,117,734.23/87,685.44 - Step 6: Final answer
x = 68,211.07
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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.