Finding the Fourth Proportional to 87,480.48, 120,660.87 and 58,394.18
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Solution
The fourth proportional to 87,480.48, 120,660.87 and 58,394.18 is: 80,542.45
Step by Step Solution
- Step 1: Write the proportion equation
87,480.48 : 120,660.87 = 58,394.18 : x - Step 2: Convert to fraction form
87,480.48/120,660.87 = 58,394.18/x - Step 3: Cross multiply
87,480.48x = 120,660.87 × 58,394.18 - Step 4: Simplify right side
87,480.48x = 7,045,891,958.43 - Step 5: Solve for x
x = 7,045,891,958.43/87,480.48 - Step 6: Final answer
x = 80,542.45
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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.