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Finding the Fourth Proportional to 43.70, 60.27 and 29.87

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Solution

The fourth proportional to 43.70, 60.27 and 29.87 is: 41.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.70 : 60.27 = 29.87 : x
  2. Step 2: Convert to fraction form
    43.70/60.27 = 29.87/x
  3. Step 3: Cross multiply
    43.70x = 60.27 × 29.87
  4. Step 4: Simplify right side
    43.70x = 1,800.42
  5. Step 5: Solve for x
    x = 1,800.42/43.70
  6. Step 6: Final answer
    x = 41.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.