Home / 50,665.28-76,007.68-21,067.20

Finding the Fourth Proportional to 50,665.28, 76,007.68 and 21,067.20

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Solution

The fourth proportional to 50,665.28, 76,007.68 and 21,067.20 is: 31,604.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,665.28 : 76,007.68 = 21,067.20 : x
  2. Step 2: Convert to fraction form
    50,665.28/76,007.68 = 21,067.20/x
  3. Step 3: Cross multiply
    50,665.28x = 76,007.68 × 21,067.20
  4. Step 4: Simplify right side
    50,665.28x = 1,601,268,996.10
  5. Step 5: Solve for x
    x = 1,601,268,996.10/50,665.28
  6. Step 6: Final answer
    x = 31,604.86

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1.5x scale

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.