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Finding the Fourth Proportional to 40,469.97, 60,704.95 and 21,758.81

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Solution

The fourth proportional to 40,469.97, 60,704.95 and 21,758.81 is: 32,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,469.97 : 60,704.95 = 21,758.81 : x
  2. Step 2: Convert to fraction form
    40,469.97/60,704.95 = 21,758.81/x
  3. Step 3: Cross multiply
    40,469.97x = 60,704.95 × 21,758.81
  4. Step 4: Simplify right side
    40,469.97x = 1,320,867,621.18
  5. Step 5: Solve for x
    x = 1,320,867,621.18/40,469.97
  6. Step 6: Final answer
    x = 32,638.22

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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.