Home / 80,899.20-111,627.36-45,081.36

Finding the Fourth Proportional to 80,899.20, 111,627.36 and 45,081.36

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Solution

The fourth proportional to 80,899.20, 111,627.36 and 45,081.36 is: 62,204.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,899.20 : 111,627.36 = 45,081.36 : x
  2. Step 2: Convert to fraction form
    80,899.20/111,627.36 = 45,081.36/x
  3. Step 3: Cross multiply
    80,899.20x = 111,627.36 × 45,081.36
  4. Step 4: Simplify right side
    80,899.20x = 5,032,313,202.01
  5. Step 5: Solve for x
    x = 5,032,313,202.01/80,899.20
  6. Step 6: Final answer
    x = 62,204.73

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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.