Home / 80,137.05-110,554.38-48,287.85

Finding the Fourth Proportional to 80,137.05, 110,554.38 and 48,287.85

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Solution

The fourth proportional to 80,137.05, 110,554.38 and 48,287.85 is: 66,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,137.05 : 110,554.38 = 48,287.85 : x
  2. Step 2: Convert to fraction form
    80,137.05/110,554.38 = 48,287.85/x
  3. Step 3: Cross multiply
    80,137.05x = 110,554.38 × 48,287.85
  4. Step 4: Simplify right side
    80,137.05x = 5,338,433,318.28
  5. Step 5: Solve for x
    x = 5,338,433,318.28/80,137.05
  6. Step 6: Final answer
    x = 66,616.29

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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.