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Finding the Fourth Proportional to 93.81, 140.76 and 32.97

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Solution

The fourth proportional to 93.81, 140.76 and 32.97 is: 49.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.81 : 140.76 = 32.97 : x
  2. Step 2: Convert to fraction form
    93.81/140.76 = 32.97/x
  3. Step 3: Cross multiply
    93.81x = 140.76 × 32.97
  4. Step 4: Simplify right side
    93.81x = 4,640.86
  5. Step 5: Solve for x
    x = 4,640.86/93.81
  6. Step 6: Final answer
    x = 49.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.