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Finding the Fourth Proportional to 80,752.60, 121,134.30 and 27,443.80

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Solution

The fourth proportional to 80,752.60, 121,134.30 and 27,443.80 is: 41,167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,752.60 : 121,134.30 = 27,443.80 : x
  2. Step 2: Convert to fraction form
    80,752.60/121,134.30 = 27,443.80/x
  3. Step 3: Cross multiply
    80,752.60x = 121,134.30 × 27,443.80
  4. Step 4: Simplify right side
    80,752.60x = 3,324,385,502.34
  5. Step 5: Solve for x
    x = 3,324,385,502.34/80,752.60
  6. Step 6: Final answer
    x = 41,167.54

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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.