Home / 81,267.63-121,900.89-22,103.07

Finding the Fourth Proportional to 81,267.63, 121,900.89 and 22,103.07

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Solution

The fourth proportional to 81,267.63, 121,900.89 and 22,103.07 is: 33,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267.63 : 121,900.89 = 22,103.07 : x
  2. Step 2: Convert to fraction form
    81,267.63/121,900.89 = 22,103.07/x
  3. Step 3: Cross multiply
    81,267.63x = 121,900.89 × 22,103.07
  4. Step 4: Simplify right side
    81,267.63x = 2,694,383,904.73
  5. Step 5: Solve for x
    x = 2,694,383,904.73/81,267.63
  6. Step 6: Final answer
    x = 33,154.45

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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.