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Finding the Fourth Proportional to 76,859, 106,067.04 and 43,325

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Solution

The fourth proportional to 76,859, 106,067.04 and 43,325 is: 59,789.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,859 : 106,067.04 = 43,325 : x
  2. Step 2: Convert to fraction form
    76,859/106,067.04 = 43,325/x
  3. Step 3: Cross multiply
    76,859x = 106,067.04 × 43,325
  4. Step 4: Simplify right side
    76,859x = 4,595,354,508
  5. Step 5: Solve for x
    x = 4,595,354,508/76,859
  6. Step 6: Final answer
    x = 59,789.41

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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.