Home / 81,735.30-122,606.35-25,576.49

Finding the Fourth Proportional to 81,735.30, 122,606.35 and 25,576.49

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Solution

The fourth proportional to 81,735.30, 122,606.35 and 25,576.49 is: 38,365.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,735.30 : 122,606.35 = 25,576.49 : x
  2. Step 2: Convert to fraction form
    81,735.30/122,606.35 = 25,576.49/x
  3. Step 3: Cross multiply
    81,735.30x = 122,606.35 × 25,576.49
  4. Step 4: Simplify right side
    81,735.30x = 3,135,840,327.29
  5. Step 5: Solve for x
    x = 3,135,840,327.29/81,735.30
  6. Step 6: Final answer
    x = 38,365.80

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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.