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Finding the Fourth Proportional to 39.91, 59.62 and 32.32

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Solution

The fourth proportional to 39.91, 59.62 and 32.32 is: 48.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.91 : 59.62 = 32.32 : x
  2. Step 2: Convert to fraction form
    39.91/59.62 = 32.32/x
  3. Step 3: Cross multiply
    39.91x = 59.62 × 32.32
  4. Step 4: Simplify right side
    39.91x = 1,926.92
  5. Step 5: Solve for x
    x = 1,926.92/39.91
  6. Step 6: Final answer
    x = 48.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.