Home / 87,197.12-120,329.76-50,905.52

Finding the Fourth Proportional to 87,197.12, 120,329.76 and 50,905.52

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Solution

The fourth proportional to 87,197.12, 120,329.76 and 50,905.52 is: 70,248.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,197.12 : 120,329.76 = 50,905.52 : x
  2. Step 2: Convert to fraction form
    87,197.12/120,329.76 = 50,905.52/x
  3. Step 3: Cross multiply
    87,197.12x = 120,329.76 × 50,905.52
  4. Step 4: Simplify right side
    87,197.12x = 6,125,449,004.28
  5. Step 5: Solve for x
    x = 6,125,449,004.28/87,197.12
  6. Step 6: Final answer
    x = 70,248.29

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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.