Home / 80,536.12-111,121.94-48,704.36

Finding the Fourth Proportional to 80,536.12, 111,121.94 and 48,704.36

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Solution

The fourth proportional to 80,536.12, 111,121.94 and 48,704.36 is: 67,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,536.12 : 111,121.94 = 48,704.36 : x
  2. Step 2: Convert to fraction form
    80,536.12/111,121.94 = 48,704.36/x
  3. Step 3: Cross multiply
    80,536.12x = 111,121.94 × 48,704.36
  4. Step 4: Simplify right side
    80,536.12x = 5,412,122,969.66
  5. Step 5: Solve for x
    x = 5,412,122,969.66/80,536.12
  6. Step 6: Final answer
    x = 67,201.19

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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.