Home / 81,349.25-122,010.11-22,171.06

Finding the Fourth Proportional to 81,349.25, 122,010.11 and 22,171.06

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Solution

The fourth proportional to 81,349.25, 122,010.11 and 22,171.06 is: 33,252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,349.25 : 122,010.11 = 22,171.06 : x
  2. Step 2: Convert to fraction form
    81,349.25/122,010.11 = 22,171.06/x
  3. Step 3: Cross multiply
    81,349.25x = 122,010.11 × 22,171.06
  4. Step 4: Simplify right side
    81,349.25x = 2,705,092,748.51
  5. Step 5: Solve for x
    x = 2,705,092,748.51/81,349.25
  6. Step 6: Final answer
    x = 33,252.83

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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.