Home / 54,586.20-81,747.78-31,141.56

Finding the Fourth Proportional to 54,586.20, 81,747.78 and 31,141.56

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Solution

The fourth proportional to 54,586.20, 81,747.78 and 31,141.56 is: 46,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,586.20 : 81,747.78 = 31,141.56 : x
  2. Step 2: Convert to fraction form
    54,586.20/81,747.78 = 31,141.56/x
  3. Step 3: Cross multiply
    54,586.20x = 81,747.78 × 31,141.56
  4. Step 4: Simplify right side
    54,586.20x = 2,545,753,395.74
  5. Step 5: Solve for x
    x = 2,545,753,395.74/54,586.20
  6. Step 6: Final answer
    x = 46,637.31

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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.