Home / 78,067.34-117,113.26-25,464.68

Finding the Fourth Proportional to 78,067.34, 117,113.26 and 25,464.68

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Solution

The fourth proportional to 78,067.34, 117,113.26 and 25,464.68 is: 38,201.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,067.34 : 117,113.26 = 25,464.68 : x
  2. Step 2: Convert to fraction form
    78,067.34/117,113.26 = 25,464.68/x
  3. Step 3: Cross multiply
    78,067.34x = 117,113.26 × 25,464.68
  4. Step 4: Simplify right side
    78,067.34x = 2,982,251,689.66
  5. Step 5: Solve for x
    x = 2,982,251,689.66/78,067.34
  6. Step 6: Final answer
    x = 38,201.02

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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.