Home / 57,231.36-78,935.96-50,145.52

Finding the Fourth Proportional to 57,231.36, 78,935.96 and 50,145.52

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Solution

The fourth proportional to 57,231.36, 78,935.96 and 50,145.52 is: 69,162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,231.36 : 78,935.96 = 50,145.52 : x
  2. Step 2: Convert to fraction form
    57,231.36/78,935.96 = 50,145.52/x
  3. Step 3: Cross multiply
    57,231.36x = 78,935.96 × 50,145.52
  4. Step 4: Simplify right side
    57,231.36x = 3,958,284,760.90
  5. Step 5: Solve for x
    x = 3,958,284,760.90/57,231.36
  6. Step 6: Final answer
    x = 69,162.86

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1.5x scale

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.