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Finding the Fourth Proportional to 43.99, 66.11 and 26.91

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Solution

The fourth proportional to 43.99, 66.11 and 26.91 is: 40.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.99 : 66.11 = 26.91 : x
  2. Step 2: Convert to fraction form
    43.99/66.11 = 26.91/x
  3. Step 3: Cross multiply
    43.99x = 66.11 × 26.91
  4. Step 4: Simplify right side
    43.99x = 1,779.02
  5. Step 5: Solve for x
    x = 1,779.02/43.99
  6. Step 6: Final answer
    x = 40.44

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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.