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Finding the Fourth Proportional to 93.28, 139.90 and 32.41

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Solution

The fourth proportional to 93.28, 139.90 and 32.41 is: 48.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.28 : 139.90 = 32.41 : x
  2. Step 2: Convert to fraction form
    93.28/139.90 = 32.41/x
  3. Step 3: Cross multiply
    93.28x = 139.90 × 32.41
  4. Step 4: Simplify right side
    93.28x = 4,534.16
  5. Step 5: Solve for x
    x = 4,534.16/93.28
  6. Step 6: Final answer
    x = 48.61

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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.