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Finding the Fourth Proportional to 80,447.80, 111,039.50 and 50,214.92

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Solution

The fourth proportional to 80,447.80, 111,039.50 and 50,214.92 is: 69,310.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,447.80 : 111,039.50 = 50,214.92 : x
  2. Step 2: Convert to fraction form
    80,447.80/111,039.50 = 50,214.92/x
  3. Step 3: Cross multiply
    80,447.80x = 111,039.50 × 50,214.92
  4. Step 4: Simplify right side
    80,447.80x = 5,575,839,103.97
  5. Step 5: Solve for x
    x = 5,575,839,103.97/80,447.80
  6. Step 6: Final answer
    x = 69,310.03

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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.