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Finding the Fourth Proportional to 83,009.18, 124,514.19 and 20,679.68

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Solution

The fourth proportional to 83,009.18, 124,514.19 and 20,679.68 is: 31,019.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,009.18 : 124,514.19 = 20,679.68 : x
  2. Step 2: Convert to fraction form
    83,009.18/124,514.19 = 20,679.68/x
  3. Step 3: Cross multiply
    83,009.18x = 124,514.19 × 20,679.68
  4. Step 4: Simplify right side
    83,009.18x = 2,574,912,982.09
  5. Step 5: Solve for x
    x = 2,574,912,982.09/83,009.18
  6. Step 6: Final answer
    x = 31,019.62

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