Home / 89,067.78-122,854.40-57,276.90

Finding the Fourth Proportional to 89,067.78, 122,854.40 and 57,276.90

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Solution

The fourth proportional to 89,067.78, 122,854.40 and 57,276.90 is: 79,004.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,067.78 : 122,854.40 = 57,276.90 : x
  2. Step 2: Convert to fraction form
    89,067.78/122,854.40 = 57,276.90/x
  3. Step 3: Cross multiply
    89,067.78x = 122,854.40 × 57,276.90
  4. Step 4: Simplify right side
    89,067.78x = 7,036,719,183.36
  5. Step 5: Solve for x
    x = 7,036,719,183.36/89,067.78
  6. Step 6: Final answer
    x = 79,004.09

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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.