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Finding the Fourth Proportional to 43.91, 65.73 and 26.74

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Solution

The fourth proportional to 43.91, 65.73 and 26.74 is: 40.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.91 : 65.73 = 26.74 : x
  2. Step 2: Convert to fraction form
    43.91/65.73 = 26.74/x
  3. Step 3: Cross multiply
    43.91x = 65.73 × 26.74
  4. Step 4: Simplify right side
    43.91x = 1,757.62
  5. Step 5: Solve for x
    x = 1,757.62/43.91
  6. Step 6: Final answer
    x = 40.03

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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.