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Finding the Fourth Proportional to 43.71, 65.48 and 26.60

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Solution

The fourth proportional to 43.71, 65.48 and 26.60 is: 39.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.71 : 65.48 = 26.60 : x
  2. Step 2: Convert to fraction form
    43.71/65.48 = 26.60/x
  3. Step 3: Cross multiply
    43.71x = 65.48 × 26.60
  4. Step 4: Simplify right side
    43.71x = 1,741.44
  5. Step 5: Solve for x
    x = 1,741.44/43.71
  6. Step 6: Final answer
    x = 39.84

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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.