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Finding the Fourth Proportional to 53,163.60, 79,864.20 and 44,415.60

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Solution

The fourth proportional to 53,163.60, 79,864.20 and 44,415.60 is: 66,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,163.60 : 79,864.20 = 44,415.60 : x
  2. Step 2: Convert to fraction form
    53,163.60/79,864.20 = 44,415.60/x
  3. Step 3: Cross multiply
    53,163.60x = 79,864.20 × 44,415.60
  4. Step 4: Simplify right side
    53,163.60x = 3,547,216,361.52
  5. Step 5: Solve for x
    x = 3,547,216,361.52/53,163.60
  6. Step 6: Final answer
    x = 66,722.65

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