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Finding the Fourth Proportional to 109,726.80, 164,590.20 and 26,620.80

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Solution

The fourth proportional to 109,726.80, 164,590.20 and 26,620.80 is: 39,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,726.80 : 164,590.20 = 26,620.80 : x
  2. Step 2: Convert to fraction form
    109,726.80/164,590.20 = 26,620.80/x
  3. Step 3: Cross multiply
    109,726.80x = 164,590.20 × 26,620.80
  4. Step 4: Simplify right side
    109,726.80x = 4,381,522,796.16
  5. Step 5: Solve for x
    x = 4,381,522,796.16/109,726.80
  6. Step 6: Final answer
    x = 39,931.20

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