Home / 54,491.13-81,734.43-18,960.58

Finding the Fourth Proportional to 54,491.13, 81,734.43 and 18,960.58

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Solution

The fourth proportional to 54,491.13, 81,734.43 and 18,960.58 is: 28,440.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,491.13 : 81,734.43 = 18,960.58 : x
  2. Step 2: Convert to fraction form
    54,491.13/81,734.43 = 18,960.58/x
  3. Step 3: Cross multiply
    54,491.13x = 81,734.43 × 18,960.58
  4. Step 4: Simplify right side
    54,491.13x = 1,549,732,372.04
  5. Step 5: Solve for x
    x = 1,549,732,372.04/54,491.13
  6. Step 6: Final answer
    x = 28,440.09

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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.