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Finding the Fourth Proportional to 47.50, 70.89 and 41.73

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Solution

The fourth proportional to 47.50, 70.89 and 41.73 is: 62.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47.50 : 70.89 = 41.73 : x
  2. Step 2: Convert to fraction form
    47.50/70.89 = 41.73/x
  3. Step 3: Cross multiply
    47.50x = 70.89 × 41.73
  4. Step 4: Simplify right side
    47.50x = 2,958.24
  5. Step 5: Solve for x
    x = 2,958.24/47.50
  6. Step 6: Final answer
    x = 62.28

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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.