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Finding the Fourth Proportional to 39,759.59, 54,871.36 and 22,769.17

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Solution

The fourth proportional to 39,759.59, 54,871.36 and 22,769.17 is: 31,423.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,759.59 : 54,871.36 = 22,769.17 : x
  2. Step 2: Convert to fraction form
    39,759.59/54,871.36 = 22,769.17/x
  3. Step 3: Cross multiply
    39,759.59x = 54,871.36 × 22,769.17
  4. Step 4: Simplify right side
    39,759.59x = 1,249,375,129.87
  5. Step 5: Solve for x
    x = 1,249,375,129.87/39,759.59
  6. Step 6: Final answer
    x = 31,423.24

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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.