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Finding the Fourth Proportional to 93.08, 139.34 and 58.73

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Solution

The fourth proportional to 93.08, 139.34 and 58.73 is: 87.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.08 : 139.34 = 58.73 : x
  2. Step 2: Convert to fraction form
    93.08/139.34 = 58.73/x
  3. Step 3: Cross multiply
    93.08x = 139.34 × 58.73
  4. Step 4: Simplify right side
    93.08x = 8,182.45
  5. Step 5: Solve for x
    x = 8,182.45/93.08
  6. Step 6: Final answer
    x = 87.91

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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.