Home / 81,295.45-121,945.33-22,132.33

Finding the Fourth Proportional to 81,295.45, 121,945.33 and 22,132.33

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Solution

The fourth proportional to 81,295.45, 121,945.33 and 22,132.33 is: 33,199.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,295.45 : 121,945.33 = 22,132.33 : x
  2. Step 2: Convert to fraction form
    81,295.45/121,945.33 = 22,132.33/x
  3. Step 3: Cross multiply
    81,295.45x = 121,945.33 × 22,132.33
  4. Step 4: Simplify right side
    81,295.45x = 2,698,933,565.13
  5. Step 5: Solve for x
    x = 2,698,933,565.13/81,295.45
  6. Step 6: Final answer
    x = 33,199.07

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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.