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Finding the Fourth Proportional to 81,335.99, 122,010.13 and 25,182.03

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Solution

The fourth proportional to 81,335.99, 122,010.13 and 25,182.03 is: 37,774.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,335.99 : 122,010.13 = 25,182.03 : x
  2. Step 2: Convert to fraction form
    81,335.99/122,010.13 = 25,182.03/x
  3. Step 3: Cross multiply
    81,335.99x = 122,010.13 × 25,182.03
  4. Step 4: Simplify right side
    81,335.99x = 3,072,462,753.96
  5. Step 5: Solve for x
    x = 3,072,462,753.96/81,335.99
  6. Step 6: Final answer
    x = 37,774.95

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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.