Home / 81,707.54-122,568.38-22,543.22

Finding the Fourth Proportional to 81,707.54, 122,568.38 and 22,543.22

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Solution

The fourth proportional to 81,707.54, 122,568.38 and 22,543.22 is: 33,816.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,707.54 : 122,568.38 = 22,543.22 : x
  2. Step 2: Convert to fraction form
    81,707.54/122,568.38 = 22,543.22/x
  3. Step 3: Cross multiply
    81,707.54x = 122,568.38 × 22,543.22
  4. Step 4: Simplify right side
    81,707.54x = 2,763,085,955.38
  5. Step 5: Solve for x
    x = 2,763,085,955.38/81,707.54
  6. Step 6: Final answer
    x = 33,816.78

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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.