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Finding the Fourth Proportional to 55,228.80, 82,843.20 and 52,809.60

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Solution

The fourth proportional to 55,228.80, 82,843.20 and 52,809.60 is: 79,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,228.80 : 82,843.20 = 52,809.60 : x
  2. Step 2: Convert to fraction form
    55,228.80/82,843.20 = 52,809.60/x
  3. Step 3: Cross multiply
    55,228.80x = 82,843.20 × 52,809.60
  4. Step 4: Simplify right side
    55,228.80x = 4,374,916,254.72
  5. Step 5: Solve for x
    x = 4,374,916,254.72/55,228.80
  6. Step 6: Final answer
    x = 79,214.40

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