Finding the Fourth Proportional to 80,158.38, 120,122.55 and 45,024.09
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Solution
The fourth proportional to 80,158.38, 120,122.55 and 45,024.09 is: 67,471.53
Step by Step Solution
- Step 1: Write the proportion equation
80,158.38 : 120,122.55 = 45,024.09 : x - Step 2: Convert to fraction form
80,158.38/120,122.55 = 45,024.09/x - Step 3: Cross multiply
80,158.38x = 120,122.55 × 45,024.09 - Step 4: Simplify right side
80,158.38x = 5,408,408,502.23 - Step 5: Solve for x
x = 5,408,408,502.23/80,158.38 - Step 6: Final answer
x = 67,471.53
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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.