Home / 80,585.05-111,172.92-50,349.78

Finding the Fourth Proportional to 80,585.05, 111,172.92 and 50,349.78

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Solution

The fourth proportional to 80,585.05, 111,172.92 and 50,349.78 is: 69,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,585.05 : 111,172.92 = 50,349.78 : x
  2. Step 2: Convert to fraction form
    80,585.05/111,172.92 = 50,349.78/x
  3. Step 3: Cross multiply
    80,585.05x = 111,172.92 × 50,349.78
  4. Step 4: Simplify right side
    80,585.05x = 5,597,531,508.09
  5. Step 5: Solve for x
    x = 5,597,531,508.09/80,585.05
  6. Step 6: Final answer
    x = 69,461.17

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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.