Home / 54,234.34-81,368.79-43,183.78

Finding the Fourth Proportional to 54,234.34, 81,368.79 and 43,183.78

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Solution

The fourth proportional to 54,234.34, 81,368.79 and 43,183.78 is: 64,789.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,234.34 : 81,368.79 = 43,183.78 : x
  2. Step 2: Convert to fraction form
    54,234.34/81,368.79 = 43,183.78/x
  3. Step 3: Cross multiply
    54,234.34x = 81,368.79 × 43,183.78
  4. Step 4: Simplify right side
    54,234.34x = 3,513,812,291.59
  5. Step 5: Solve for x
    x = 3,513,812,291.59/54,234.34
  6. Step 6: Final answer
    x = 64,789.43

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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.