Home / 87,078.92-120,182.04-53,107.12

Finding the Fourth Proportional to 87,078.92, 120,182.04 and 53,107.12

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Solution

The fourth proportional to 87,078.92, 120,182.04 and 53,107.12 is: 73,295.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,078.92 : 120,182.04 = 53,107.12 : x
  2. Step 2: Convert to fraction form
    87,078.92/120,182.04 = 53,107.12/x
  3. Step 3: Cross multiply
    87,078.92x = 120,182.04 × 53,107.12
  4. Step 4: Simplify right side
    87,078.92x = 6,382,522,020.12
  5. Step 5: Solve for x
    x = 6,382,522,020.12/87,078.92
  6. Step 6: Final answer
    x = 73,295.83

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1.5x scale

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.