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Finding the Fourth Proportional to 43.12, 59.42 and 36.56

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Solution

The fourth proportional to 43.12, 59.42 and 36.56 is: 50.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.12 : 59.42 = 36.56 : x
  2. Step 2: Convert to fraction form
    43.12/59.42 = 36.56/x
  3. Step 3: Cross multiply
    43.12x = 59.42 × 36.56
  4. Step 4: Simplify right side
    43.12x = 2,172.40
  5. Step 5: Solve for x
    x = 2,172.40/43.12
  6. Step 6: Final answer
    x = 50.38

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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.