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Finding the Fourth Proportional to 99,261.64, 136,989.46 and 54,558.92

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Solution

The fourth proportional to 99,261.64, 136,989.46 and 54,558.92 is: 75,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,261.64 : 136,989.46 = 54,558.92 : x
  2. Step 2: Convert to fraction form
    99,261.64/136,989.46 = 54,558.92/x
  3. Step 3: Cross multiply
    99,261.64x = 136,989.46 × 54,558.92
  4. Step 4: Simplify right side
    99,261.64x = 7,473,996,988.98
  5. Step 5: Solve for x
    x = 7,473,996,988.98/99,261.64
  6. Step 6: Final answer
    x = 75,295.92

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