Home / 81,822.54-122,720.04-22,664.19

Finding the Fourth Proportional to 81,822.54, 122,720.04 and 22,664.19

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Solution

The fourth proportional to 81,822.54, 122,720.04 and 22,664.19 is: 33,992.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,822.54 : 122,720.04 = 22,664.19 : x
  2. Step 2: Convert to fraction form
    81,822.54/122,720.04 = 22,664.19/x
  3. Step 3: Cross multiply
    81,822.54x = 122,720.04 × 22,664.19
  4. Step 4: Simplify right side
    81,822.54x = 2,781,350,303.37
  5. Step 5: Solve for x
    x = 2,781,350,303.37/81,822.54
  6. Step 6: Final answer
    x = 33,992.47

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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.