Home / 67,905.40-101,785.20-25,769.20

Finding the Fourth Proportional to 67,905.40, 101,785.20 and 25,769.20

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Solution

The fourth proportional to 67,905.40, 101,785.20 and 25,769.20 is: 38,626.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,905.40 : 101,785.20 = 25,769.20 : x
  2. Step 2: Convert to fraction form
    67,905.40/101,785.20 = 25,769.20/x
  3. Step 3: Cross multiply
    67,905.40x = 101,785.20 × 25,769.20
  4. Step 4: Simplify right side
    67,905.40x = 2,622,923,175.84
  5. Step 5: Solve for x
    x = 2,622,923,175.84/67,905.40
  6. Step 6: Final answer
    x = 38,626.14

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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.