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Finding the Fourth Proportional to 80,794.80, 111,512.40 and 48,981.12

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Solution

The fourth proportional to 80,794.80, 111,512.40 and 48,981.12 is: 67,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,794.80 : 111,512.40 = 48,981.12 : x
  2. Step 2: Convert to fraction form
    80,794.80/111,512.40 = 48,981.12/x
  3. Step 3: Cross multiply
    80,794.80x = 111,512.40 × 48,981.12
  4. Step 4: Simplify right side
    80,794.80x = 5,462,002,245.89
  5. Step 5: Solve for x
    x = 5,462,002,245.89/80,794.80
  6. Step 6: Final answer
    x = 67,603.39

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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.