Home / 54,198.48-81,293.12-18,656.88

Finding the Fourth Proportional to 54,198.48, 81,293.12 and 18,656.88

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Solution

The fourth proportional to 54,198.48, 81,293.12 and 18,656.88 is: 27,983.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,198.48 : 81,293.12 = 18,656.88 : x
  2. Step 2: Convert to fraction form
    54,198.48/81,293.12 = 18,656.88/x
  3. Step 3: Cross multiply
    54,198.48x = 81,293.12 × 18,656.88
  4. Step 4: Simplify right side
    54,198.48x = 1,516,675,984.67
  5. Step 5: Solve for x
    x = 1,516,675,984.67/54,198.48
  6. Step 6: Final answer
    x = 27,983.74

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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.