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Finding the Fourth Proportional to 80,813.91, 111,593.71 and 50,651.09

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Solution

The fourth proportional to 80,813.91, 111,593.71 and 50,651.09 is: 69,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,813.91 : 111,593.71 = 50,651.09 : x
  2. Step 2: Convert to fraction form
    80,813.91/111,593.71 = 50,651.09/x
  3. Step 3: Cross multiply
    80,813.91x = 111,593.71 × 50,651.09
  4. Step 4: Simplify right side
    80,813.91x = 5,652,343,048.64
  5. Step 5: Solve for x
    x = 5,652,343,048.64/80,813.91
  6. Step 6: Final answer
    x = 69,942.70

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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.