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Finding the Fourth Proportional to 109,038.40, 163,565.70 and 38,908.60

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Solution

The fourth proportional to 109,038.40, 163,565.70 and 38,908.60 is: 58,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,038.40 : 163,565.70 = 38,908.60 : x
  2. Step 2: Convert to fraction form
    109,038.40/163,565.70 = 38,908.60/x
  3. Step 3: Cross multiply
    109,038.40x = 163,565.70 × 38,908.60
  4. Step 4: Simplify right side
    109,038.40x = 6,364,112,395.02
  5. Step 5: Solve for x
    x = 6,364,112,395.02/109,038.40
  6. Step 6: Final answer
    x = 58,365.79

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