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Finding the Fourth Proportional to 93.21, 139.19 and 62.56

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Solution

The fourth proportional to 93.21, 139.19 and 62.56 is: 93.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.21 : 139.19 = 62.56 : x
  2. Step 2: Convert to fraction form
    93.21/139.19 = 62.56/x
  3. Step 3: Cross multiply
    93.21x = 139.19 × 62.56
  4. Step 4: Simplify right side
    93.21x = 8,707.73
  5. Step 5: Solve for x
    x = 8,707.73/93.21
  6. Step 6: Final answer
    x = 93.42

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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.