Home / 81,243.96-121,865.76-22,088.22

Finding the Fourth Proportional to 81,243.96, 121,865.76 and 22,088.22

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Solution

The fourth proportional to 81,243.96, 121,865.76 and 22,088.22 is: 33,132.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,243.96 : 121,865.76 = 22,088.22 : x
  2. Step 2: Convert to fraction form
    81,243.96/121,865.76 = 22,088.22/x
  3. Step 3: Cross multiply
    81,243.96x = 121,865.76 × 22,088.22
  4. Step 4: Simplify right side
    81,243.96x = 2,691,797,717.35
  5. Step 5: Solve for x
    x = 2,691,797,717.35/81,243.96
  6. Step 6: Final answer
    x = 33,132.28

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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.