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Finding the Fourth Proportional to 99,632.21, 137,489.70 and 54,311.07

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Solution

The fourth proportional to 99,632.21, 137,489.70 and 54,311.07 is: 74,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,632.21 : 137,489.70 = 54,311.07 : x
  2. Step 2: Convert to fraction form
    99,632.21/137,489.70 = 54,311.07/x
  3. Step 3: Cross multiply
    99,632.21x = 137,489.70 × 54,311.07
  4. Step 4: Simplify right side
    99,632.21x = 7,467,212,449.42
  5. Step 5: Solve for x
    x = 7,467,212,449.42/99,632.21
  6. Step 6: Final answer
    x = 74,947.78

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