Home / 81,326.46-121,996.05-22,164.48

Finding the Fourth Proportional to 81,326.46, 121,996.05 and 22,164.48

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Solution

The fourth proportional to 81,326.46, 121,996.05 and 22,164.48 is: 33,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,326.46 : 121,996.05 = 22,164.48 : x
  2. Step 2: Convert to fraction form
    81,326.46/121,996.05 = 22,164.48/x
  3. Step 3: Cross multiply
    81,326.46x = 121,996.05 × 22,164.48
  4. Step 4: Simplify right side
    81,326.46x = 2,703,979,010.30
  5. Step 5: Solve for x
    x = 2,703,979,010.30/81,326.46
  6. Step 6: Final answer
    x = 33,248.45

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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.