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Finding the Fourth Proportional to 80,019.84, 120,040.68 and 29,412.12

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Solution

The fourth proportional to 80,019.84, 120,040.68 and 29,412.12 is: 44,122.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,019.84 : 120,040.68 = 29,412.12 : x
  2. Step 2: Convert to fraction form
    80,019.84/120,040.68 = 29,412.12/x
  3. Step 3: Cross multiply
    80,019.84x = 120,040.68 × 29,412.12
  4. Step 4: Simplify right side
    80,019.84x = 3,530,650,885.04
  5. Step 5: Solve for x
    x = 3,530,650,885.04/80,019.84
  6. Step 6: Final answer
    x = 44,122.19

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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.