Home / 73,987.07-110,997.23-21,400.65

Finding the Fourth Proportional to 73,987.07, 110,997.23 and 21,400.65

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Solution

The fourth proportional to 73,987.07, 110,997.23 and 21,400.65 is: 32,105.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,987.07 : 110,997.23 = 21,400.65 : x
  2. Step 2: Convert to fraction form
    73,987.07/110,997.23 = 21,400.65/x
  3. Step 3: Cross multiply
    73,987.07x = 110,997.23 × 21,400.65
  4. Step 4: Simplify right side
    73,987.07x = 2,375,412,763.20
  5. Step 5: Solve for x
    x = 2,375,412,763.20/73,987.07
  6. Step 6: Final answer
    x = 32,105.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.