Home / 55,227.12-82,791-20,142.24

Finding the Fourth Proportional to 55,227.12, 82,791 and 20,142.24

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Solution

The fourth proportional to 55,227.12, 82,791 and 20,142.24 is: 30,195.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,227.12 : 82,791 = 20,142.24 : x
  2. Step 2: Convert to fraction form
    55,227.12/82,791 = 20,142.24/x
  3. Step 3: Cross multiply
    55,227.12x = 82,791 × 20,142.24
  4. Step 4: Simplify right side
    55,227.12x = 1,667,596,191.84
  5. Step 5: Solve for x
    x = 1,667,596,191.84/55,227.12
  6. Step 6: Final answer
    x = 30,195.24

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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.