Finding the Fourth Proportional to 87,420.24, 120,635.46 and 49,180.68
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Solution
The fourth proportional to 87,420.24, 120,635.46 and 49,180.68 is: 67,866.82
Step by Step Solution
- Step 1: Write the proportion equation
87,420.24 : 120,635.46 = 49,180.68 : x - Step 2: Convert to fraction form
87,420.24/120,635.46 = 49,180.68/x - Step 3: Cross multiply
87,420.24x = 120,635.46 × 49,180.68 - Step 4: Simplify right side
87,420.24x = 5,932,933,954.91 - Step 5: Solve for x
x = 5,932,933,954.91/87,420.24 - Step 6: Final answer
x = 67,866.82
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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.