Home / 54,065.22-81,115.17-25,987.30

Finding the Fourth Proportional to 54,065.22, 81,115.17 and 25,987.30

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Solution

The fourth proportional to 54,065.22, 81,115.17 and 25,987.30 is: 38,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,065.22 : 81,115.17 = 25,987.30 : x
  2. Step 2: Convert to fraction form
    54,065.22/81,115.17 = 25,987.30/x
  3. Step 3: Cross multiply
    54,065.22x = 81,115.17 × 25,987.30
  4. Step 4: Simplify right side
    54,065.22x = 2,107,964,257.34
  5. Step 5: Solve for x
    x = 2,107,964,257.34/54,065.22
  6. Step 6: Final answer
    x = 38,989.28

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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.