Home / 71,171.38-106,755.36-23,139.92

Finding the Fourth Proportional to 71,171.38, 106,755.36 and 23,139.92

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Solution

The fourth proportional to 71,171.38, 106,755.36 and 23,139.92 is: 34,709.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,171.38 : 106,755.36 = 23,139.92 : x
  2. Step 2: Convert to fraction form
    71,171.38/106,755.36 = 23,139.92/x
  3. Step 3: Cross multiply
    71,171.38x = 106,755.36 × 23,139.92
  4. Step 4: Simplify right side
    71,171.38x = 2,470,310,489.97
  5. Step 5: Solve for x
    x = 2,470,310,489.97/71,171.38
  6. Step 6: Final answer
    x = 34,709.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.