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Finding the Fourth Proportional to 80,169.84, 120,265.68 and 33,411.78

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Solution

The fourth proportional to 80,169.84, 120,265.68 and 33,411.78 is: 50,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,169.84 : 120,265.68 = 33,411.78 : x
  2. Step 2: Convert to fraction form
    80,169.84/120,265.68 = 33,411.78/x
  3. Step 3: Cross multiply
    80,169.84x = 120,265.68 × 33,411.78
  4. Step 4: Simplify right side
    80,169.84x = 4,018,290,441.71
  5. Step 5: Solve for x
    x = 4,018,290,441.71/80,169.84
  6. Step 6: Final answer
    x = 50,122.22

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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.