Home / 80,721.03-111,389.49-44,909.70

Finding the Fourth Proportional to 80,721.03, 111,389.49 and 44,909.70

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Solution

The fourth proportional to 80,721.03, 111,389.49 and 44,909.70 is: 61,972.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,721.03 : 111,389.49 = 44,909.70 : x
  2. Step 2: Convert to fraction form
    80,721.03/111,389.49 = 44,909.70/x
  3. Step 3: Cross multiply
    80,721.03x = 111,389.49 × 44,909.70
  4. Step 4: Simplify right side
    80,721.03x = 5,002,468,579.05
  5. Step 5: Solve for x
    x = 5,002,468,579.05/80,721.03
  6. Step 6: Final answer
    x = 61,972.31

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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.