Home / 54,372.36-81,508.68-21,083.88

Finding the Fourth Proportional to 54,372.36, 81,508.68 and 21,083.88

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Solution

The fourth proportional to 54,372.36, 81,508.68 and 21,083.88 is: 31,606.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,372.36 : 81,508.68 = 21,083.88 : x
  2. Step 2: Convert to fraction form
    54,372.36/81,508.68 = 21,083.88/x
  3. Step 3: Cross multiply
    54,372.36x = 81,508.68 × 21,083.88
  4. Step 4: Simplify right side
    54,372.36x = 1,718,519,228.08
  5. Step 5: Solve for x
    x = 1,718,519,228.08/54,372.36
  6. Step 6: Final answer
    x = 31,606.49

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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.