Home / 54,178.30-81,247.24-18,629.56

Finding the Fourth Proportional to 54,178.30, 81,247.24 and 18,629.56

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Solution

The fourth proportional to 54,178.30, 81,247.24 and 18,629.56 is: 27,937.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,178.30 : 81,247.24 = 18,629.56 : x
  2. Step 2: Convert to fraction form
    54,178.30/81,247.24 = 18,629.56/x
  3. Step 3: Cross multiply
    54,178.30x = 81,247.24 × 18,629.56
  4. Step 4: Simplify right side
    54,178.30x = 1,513,600,332.41
  5. Step 5: Solve for x
    x = 1,513,600,332.41/54,178.30
  6. Step 6: Final answer
    x = 27,937.39

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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.