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Finding the Fourth Proportional to 80,651.56, 120,963.69 and 24,478.21

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Solution

The fourth proportional to 80,651.56, 120,963.69 and 24,478.21 is: 36,713.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,651.56 : 120,963.69 = 24,478.21 : x
  2. Step 2: Convert to fraction form
    80,651.56/120,963.69 = 24,478.21/x
  3. Step 3: Cross multiply
    80,651.56x = 120,963.69 × 24,478.21
  4. Step 4: Simplify right side
    80,651.56x = 2,960,974,606.19
  5. Step 5: Solve for x
    x = 2,960,974,606.19/80,651.56
  6. Step 6: Final answer
    x = 36,713.17

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1.5x scale

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.