Home / 81,957.92-113,067.60-50,116.64

Finding the Fourth Proportional to 81,957.92, 113,067.60 and 50,116.64

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Solution

The fourth proportional to 81,957.92, 113,067.60 and 50,116.64 is: 69,139.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,957.92 : 113,067.60 = 50,116.64 : x
  2. Step 2: Convert to fraction form
    81,957.92/113,067.60 = 50,116.64/x
  3. Step 3: Cross multiply
    81,957.92x = 113,067.60 × 50,116.64
  4. Step 4: Simplify right side
    81,957.92x = 5,666,568,204.86
  5. Step 5: Solve for x
    x = 5,666,568,204.86/81,957.92
  6. Step 6: Final answer
    x = 69,139.97

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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.