Finding the Fourth Proportional to 80,687.20, 121,031.66 and 24,536.44
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Solution
The fourth proportional to 80,687.20, 121,031.66 and 24,536.44 is: 36,804.92
Step by Step Solution
- Step 1: Write the proportion equation
80,687.20 : 121,031.66 = 24,536.44 : x - Step 2: Convert to fraction form
80,687.20/121,031.66 = 24,536.44/x - Step 3: Cross multiply
80,687.20x = 121,031.66 × 24,536.44 - Step 4: Simplify right side
80,687.20x = 2,969,686,063.69 - Step 5: Solve for x
x = 2,969,686,063.69/80,687.20 - Step 6: Final answer
x = 36,804.92
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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.