Home / 81,174.06-121,760.79-22,009.57

Finding the Fourth Proportional to 81,174.06, 121,760.79 and 22,009.57

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Solution

The fourth proportional to 81,174.06, 121,760.79 and 22,009.57 is: 33,014.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,174.06 : 121,760.79 = 22,009.57 : x
  2. Step 2: Convert to fraction form
    81,174.06/121,760.79 = 22,009.57/x
  3. Step 3: Cross multiply
    81,174.06x = 121,760.79 × 22,009.57
  4. Step 4: Simplify right side
    81,174.06x = 2,679,902,630.76
  5. Step 5: Solve for x
    x = 2,679,902,630.76/81,174.06
  6. Step 6: Final answer
    x = 33,014.27

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1.5x scale

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.