Home / 81,911.34-122,867.01-22,747.05

Finding the Fourth Proportional to 81,911.34, 122,867.01 and 22,747.05

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Solution

The fourth proportional to 81,911.34, 122,867.01 and 22,747.05 is: 34,120.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,911.34 : 122,867.01 = 22,747.05 : x
  2. Step 2: Convert to fraction form
    81,911.34/122,867.01 = 22,747.05/x
  3. Step 3: Cross multiply
    81,911.34x = 122,867.01 × 22,747.05
  4. Step 4: Simplify right side
    81,911.34x = 2,794,862,019.82
  5. Step 5: Solve for x
    x = 2,794,862,019.82/81,911.34
  6. Step 6: Final answer
    x = 34,120.58

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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.