Home / 81,205.56-121,829.36-25,044.42

Finding the Fourth Proportional to 81,205.56, 121,829.36 and 25,044.42

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Solution

The fourth proportional to 81,205.56, 121,829.36 and 25,044.42 is: 37,573.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,205.56 : 121,829.36 = 25,044.42 : x
  2. Step 2: Convert to fraction form
    81,205.56/121,829.36 = 25,044.42/x
  3. Step 3: Cross multiply
    81,205.56x = 121,829.36 × 25,044.42
  4. Step 4: Simplify right side
    81,205.56x = 3,051,145,660.17
  5. Step 5: Solve for x
    x = 3,051,145,660.17/81,205.56
  6. Step 6: Final answer
    x = 37,573.11

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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.