Home / 81,322.58-121,971.54-22,162.97

Finding the Fourth Proportional to 81,322.58, 121,971.54 and 22,162.97

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Solution

The fourth proportional to 81,322.58, 121,971.54 and 22,162.97 is: 33,241.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,322.58 : 121,971.54 = 22,162.97 : x
  2. Step 2: Convert to fraction form
    81,322.58/121,971.54 = 22,162.97/x
  3. Step 3: Cross multiply
    81,322.58x = 121,971.54 × 22,162.97
  4. Step 4: Simplify right side
    81,322.58x = 2,703,251,581.87
  5. Step 5: Solve for x
    x = 2,703,251,581.87/81,322.58
  6. Step 6: Final answer
    x = 33,241.09

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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.