Home / 39,139.20-54,017.28-26,568

Finding the Fourth Proportional to 39,139.20, 54,017.28 and 26,568

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Solution

The fourth proportional to 39,139.20, 54,017.28 and 26,568 is: 36,667.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.20 : 54,017.28 = 26,568 : x
  2. Step 2: Convert to fraction form
    39,139.20/54,017.28 = 26,568/x
  3. Step 3: Cross multiply
    39,139.20x = 54,017.28 × 26,568
  4. Step 4: Simplify right side
    39,139.20x = 1,435,131,095.04
  5. Step 5: Solve for x
    x = 1,435,131,095.04/39,139.20
  6. Step 6: Final answer
    x = 36,667.36

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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.