Finding the Fourth Proportional to 87,229.44, 120,367.68 and 48,993.24
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Solution
The fourth proportional to 87,229.44, 120,367.68 and 48,993.24 is: 67,605.65
Step by Step Solution
- Step 1: Write the proportion equation
87,229.44 : 120,367.68 = 48,993.24 : x - Step 2: Convert to fraction form
87,229.44/120,367.68 = 48,993.24/x - Step 3: Cross multiply
87,229.44x = 120,367.68 × 48,993.24 - Step 4: Simplify right side
87,229.44x = 5,897,202,634.48 - Step 5: Solve for x
x = 5,897,202,634.48/87,229.44 - Step 6: Final answer
x = 67,605.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.