Finding the Fourth Proportional to 80,207.14, 120,528.81 and 42,793.65
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Solution
The fourth proportional to 80,207.14, 120,528.81 and 42,793.65 is: 64,306.84
Step by Step Solution
- Step 1: Write the proportion equation
80,207.14 : 120,528.81 = 42,793.65 : x - Step 2: Convert to fraction form
80,207.14/120,528.81 = 42,793.65/x - Step 3: Cross multiply
80,207.14x = 120,528.81 × 42,793.65 - Step 4: Simplify right side
80,207.14x = 5,157,867,710.06 - Step 5: Solve for x
x = 5,157,867,710.06/80,207.14 - Step 6: Final answer
x = 64,306.84
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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.