Home / 87,436.85-120,660.23-49,198.52

Finding the Fourth Proportional to 87,436.85, 120,660.23 and 49,198.52

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Solution

The fourth proportional to 87,436.85, 120,660.23 and 49,198.52 is: 67,892.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,436.85 : 120,660.23 = 49,198.52 : x
  2. Step 2: Convert to fraction form
    87,436.85/120,660.23 = 49,198.52/x
  3. Step 3: Cross multiply
    87,436.85x = 120,660.23 × 49,198.52
  4. Step 4: Simplify right side
    87,436.85x = 5,936,303,889.57
  5. Step 5: Solve for x
    x = 5,936,303,889.57/87,436.85
  6. Step 6: Final answer
    x = 67,892.48

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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.