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Finding the Fourth Proportional to 43.80, 60.00 and 43.68

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Solution

The fourth proportional to 43.80, 60.00 and 43.68 is: 59.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.80 : 60.00 = 43.68 : x
  2. Step 2: Convert to fraction form
    43.80/60.00 = 43.68/x
  3. Step 3: Cross multiply
    43.80x = 60.00 × 43.68
  4. Step 4: Simplify right side
    43.80x = 2,620.58
  5. Step 5: Solve for x
    x = 2,620.58/43.80
  6. Step 6: Final answer
    x = 59.83

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.