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Finding the Fourth Proportional to 72,831.36, 109,212.48 and 37,735.68

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Solution

The fourth proportional to 72,831.36, 109,212.48 and 37,735.68 is: 56,585.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,831.36 : 109,212.48 = 37,735.68 : x
  2. Step 2: Convert to fraction form
    72,831.36/109,212.48 = 37,735.68/x
  3. Step 3: Cross multiply
    72,831.36x = 109,212.48 × 37,735.68
  4. Step 4: Simplify right side
    72,831.36x = 4,121,207,197.29
  5. Step 5: Solve for x
    x = 4,121,207,197.29/72,831.36
  6. Step 6: Final answer
    x = 56,585.61

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