Home / 71,297.10-106,945.38-17,989.20

Finding the Fourth Proportional to 71,297.10, 106,945.38 and 17,989.20

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Solution

The fourth proportional to 71,297.10, 106,945.38 and 17,989.20 is: 26,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,297.10 : 106,945.38 = 17,989.20 : x
  2. Step 2: Convert to fraction form
    71,297.10/106,945.38 = 17,989.20/x
  3. Step 3: Cross multiply
    71,297.10x = 106,945.38 × 17,989.20
  4. Step 4: Simplify right side
    71,297.10x = 1,923,861,829.90
  5. Step 5: Solve for x
    x = 1,923,861,829.90/71,297.10
  6. Step 6: Final answer
    x = 26,983.73

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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.