Home / 54,489.43-81,731.91-18,958.88

Finding the Fourth Proportional to 54,489.43, 81,731.91 and 18,958.88

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Solution

The fourth proportional to 54,489.43, 81,731.91 and 18,958.88 is: 28,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,489.43 : 81,731.91 = 18,958.88 : x
  2. Step 2: Convert to fraction form
    54,489.43/81,731.91 = 18,958.88/x
  3. Step 3: Cross multiply
    54,489.43x = 81,731.91 × 18,958.88
  4. Step 4: Simplify right side
    54,489.43x = 1,549,545,749.29
  5. Step 5: Solve for x
    x = 1,549,545,749.29/54,489.43
  6. Step 6: Final answer
    x = 28,437.55

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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.