Finding the Fourth Proportional to 80,321.08, 120,536.88 and 27,730.56
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Solution
The fourth proportional to 80,321.08, 120,536.88 and 27,730.56 is: 41,614.92
Step by Step Solution
- Step 1: Write the proportion equation
80,321.08 : 120,536.88 = 27,730.56 : x - Step 2: Convert to fraction form
80,321.08/120,536.88 = 27,730.56/x - Step 3: Cross multiply
80,321.08x = 120,536.88 × 27,730.56 - Step 4: Simplify right side
80,321.08x = 3,342,555,183.05 - Step 5: Solve for x
x = 3,342,555,183.05/80,321.08 - Step 6: Final answer
x = 41,614.92
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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.