Home / 83,351.20-115,023.77-45,109.92

Finding the Fourth Proportional to 83,351.20, 115,023.77 and 45,109.92

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Solution

The fourth proportional to 83,351.20, 115,023.77 and 45,109.92 is: 62,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,351.20 : 115,023.77 = 45,109.92 : x
  2. Step 2: Convert to fraction form
    83,351.20/115,023.77 = 45,109.92/x
  3. Step 3: Cross multiply
    83,351.20x = 115,023.77 × 45,109.92
  4. Step 4: Simplify right side
    83,351.20x = 5,188,713,006.41
  5. Step 5: Solve for x
    x = 5,188,713,006.41/83,351.20
  6. Step 6: Final answer
    x = 62,251.21

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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.