Home / 80,467.70-111,040.25-50,251.21

Finding the Fourth Proportional to 80,467.70, 111,040.25 and 50,251.21

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Solution

The fourth proportional to 80,467.70, 111,040.25 and 50,251.21 is: 69,343.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,467.70 : 111,040.25 = 50,251.21 : x
  2. Step 2: Convert to fraction form
    80,467.70/111,040.25 = 50,251.21/x
  3. Step 3: Cross multiply
    80,467.70x = 111,040.25 × 50,251.21
  4. Step 4: Simplify right side
    80,467.70x = 5,579,906,970.84
  5. Step 5: Solve for x
    x = 5,579,906,970.84/80,467.70
  6. Step 6: Final answer
    x = 69,343.44

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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.