Home / 81,629.44-122,455.84-25,474.58

Finding the Fourth Proportional to 81,629.44, 122,455.84 and 25,474.58

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Solution

The fourth proportional to 81,629.44, 122,455.84 and 25,474.58 is: 38,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,629.44 : 122,455.84 = 25,474.58 : x
  2. Step 2: Convert to fraction form
    81,629.44/122,455.84 = 25,474.58/x
  3. Step 3: Cross multiply
    81,629.44x = 122,455.84 × 25,474.58
  4. Step 4: Simplify right side
    81,629.44x = 3,119,511,092.55
  5. Step 5: Solve for x
    x = 3,119,511,092.55/81,629.44
  6. Step 6: Final answer
    x = 38,215.52

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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.