Home / 51,249.60-76,874.40-18,007.20

Finding the Fourth Proportional to 51,249.60, 76,874.40 and 18,007.20

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Solution

The fourth proportional to 51,249.60, 76,874.40 and 18,007.20 is: 27,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,249.60 : 76,874.40 = 18,007.20 : x
  2. Step 2: Convert to fraction form
    51,249.60/76,874.40 = 18,007.20/x
  3. Step 3: Cross multiply
    51,249.60x = 76,874.40 × 18,007.20
  4. Step 4: Simplify right side
    51,249.60x = 1,384,292,695.68
  5. Step 5: Solve for x
    x = 1,384,292,695.68/51,249.60
  6. Step 6: Final answer
    x = 27,010.80

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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.