Home / 81,962.56-122,948.76-25,804.48

Finding the Fourth Proportional to 81,962.56, 122,948.76 and 25,804.48

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Solution

The fourth proportional to 81,962.56, 122,948.76 and 25,804.48 is: 38,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,962.56 : 122,948.76 = 25,804.48 : x
  2. Step 2: Convert to fraction form
    81,962.56/122,948.76 = 25,804.48/x
  3. Step 3: Cross multiply
    81,962.56x = 122,948.76 × 25,804.48
  4. Step 4: Simplify right side
    81,962.56x = 3,172,628,818.44
  5. Step 5: Solve for x
    x = 3,172,628,818.44/81,962.56
  6. Step 6: Final answer
    x = 38,708.27

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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.