Home / 81,824.34-122,736.24-25,664.88

Finding the Fourth Proportional to 81,824.34, 122,736.24 and 25,664.88

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Solution

The fourth proportional to 81,824.34, 122,736.24 and 25,664.88 is: 38,497.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,824.34 : 122,736.24 = 25,664.88 : x
  2. Step 2: Convert to fraction form
    81,824.34/122,736.24 = 25,664.88/x
  3. Step 3: Cross multiply
    81,824.34x = 122,736.24 × 25,664.88
  4. Step 4: Simplify right side
    81,824.34x = 3,150,010,871.25
  5. Step 5: Solve for x
    x = 3,150,010,871.25/81,824.34
  6. Step 6: Final answer
    x = 38,497.24

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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.