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Finding the Fourth Proportional to 64,972.86, 89,661.84 and 36,679.74

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Solution

The fourth proportional to 64,972.86, 89,661.84 and 36,679.74 is: 50,617.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,972.86 : 89,661.84 = 36,679.74 : x
  2. Step 2: Convert to fraction form
    64,972.86/89,661.84 = 36,679.74/x
  3. Step 3: Cross multiply
    64,972.86x = 89,661.84 × 36,679.74
  4. Step 4: Simplify right side
    64,972.86x = 3,288,772,979.12
  5. Step 5: Solve for x
    x = 3,288,772,979.12/64,972.86
  6. Step 6: Final answer
    x = 50,617.64

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