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Finding the Fourth Proportional to 39.52, 59.52 and 33.92

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Solution

The fourth proportional to 39.52, 59.52 and 33.92 is: 51.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.52 : 59.52 = 33.92 : x
  2. Step 2: Convert to fraction form
    39.52/59.52 = 33.92/x
  3. Step 3: Cross multiply
    39.52x = 59.52 × 33.92
  4. Step 4: Simplify right side
    39.52x = 2,018.92
  5. Step 5: Solve for x
    x = 2,018.92/39.52
  6. Step 6: Final answer
    x = 51.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.