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Finding the Fourth Proportional to 54,399, 81,610.20 and 16,958.28

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Solution

The fourth proportional to 54,399, 81,610.20 and 16,958.28 is: 25,441.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,399 : 81,610.20 = 16,958.28 : x
  2. Step 2: Convert to fraction form
    54,399/81,610.20 = 16,958.28/x
  3. Step 3: Cross multiply
    54,399x = 81,610.20 × 16,958.28
  4. Step 4: Simplify right side
    54,399x = 1,383,968,622.46
  5. Step 5: Solve for x
    x = 1,383,968,622.46/54,399
  6. Step 6: Final answer
    x = 25,441.07

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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.