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Finding the Fourth Proportional to 73,339.28, 101,209.38 and 39,805.28

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Solution

The fourth proportional to 73,339.28, 101,209.38 and 39,805.28 is: 54,931.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,339.28 : 101,209.38 = 39,805.28 : x
  2. Step 2: Convert to fraction form
    73,339.28/101,209.38 = 39,805.28/x
  3. Step 3: Cross multiply
    73,339.28x = 101,209.38 × 39,805.28
  4. Step 4: Simplify right side
    73,339.28x = 4,028,667,709.53
  5. Step 5: Solve for x
    x = 4,028,667,709.53/73,339.28
  6. Step 6: Final answer
    x = 54,931.92

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1.5x scale

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.