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Finding the Fourth Proportional to 80,281.53, 110,687.85 and 51,550.43

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Solution

The fourth proportional to 80,281.53, 110,687.85 and 51,550.43 is: 71,074.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,281.53 : 110,687.85 = 51,550.43 : x
  2. Step 2: Convert to fraction form
    80,281.53/110,687.85 = 51,550.43/x
  3. Step 3: Cross multiply
    80,281.53x = 110,687.85 × 51,550.43
  4. Step 4: Simplify right side
    80,281.53x = 5,706,005,709.84
  5. Step 5: Solve for x
    x = 5,706,005,709.84/80,281.53
  6. Step 6: Final answer
    x = 71,074.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.