Home / 65,104.97-97,664.62-20,721.33

Finding the Fourth Proportional to 65,104.97, 97,664.62 and 20,721.33

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Solution

The fourth proportional to 65,104.97, 97,664.62 and 20,721.33 is: 31,084.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,104.97 : 97,664.62 = 20,721.33 : x
  2. Step 2: Convert to fraction form
    65,104.97/97,664.62 = 20,721.33/x
  3. Step 3: Cross multiply
    65,104.97x = 97,664.62 × 20,721.33
  4. Step 4: Simplify right side
    65,104.97x = 2,023,740,768.54
  5. Step 5: Solve for x
    x = 2,023,740,768.54/65,104.97
  6. Step 6: Final answer
    x = 31,084.27

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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.