Finding the Fourth Proportional to 80,507.12, 120,721.84 and 33,747.44
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Solution
The fourth proportional to 80,507.12, 120,721.84 and 33,747.44 is: 50,604.88
Step by Step Solution
- Step 1: Write the proportion equation
80,507.12 : 120,721.84 = 33,747.44 : x - Step 2: Convert to fraction form
80,507.12/120,721.84 = 33,747.44/x - Step 3: Cross multiply
80,507.12x = 120,721.84 × 33,747.44 - Step 4: Simplify right side
80,507.12x = 4,074,053,052.09 - Step 5: Solve for x
x = 4,074,053,052.09/80,507.12 - Step 6: Final answer
x = 50,604.88
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1.5x scale
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.