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Finding the Fourth Proportional to 55,983.60, 83,829.60 and 53,359.20

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Solution

The fourth proportional to 55,983.60, 83,829.60 and 53,359.20 is: 79,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,983.60 : 83,829.60 = 53,359.20 : x
  2. Step 2: Convert to fraction form
    55,983.60/83,829.60 = 53,359.20/x
  3. Step 3: Cross multiply
    55,983.60x = 83,829.60 × 53,359.20
  4. Step 4: Simplify right side
    55,983.60x = 4,473,080,392.32
  5. Step 5: Solve for x
    x = 4,473,080,392.32/55,983.60
  6. Step 6: Final answer
    x = 79,899.83

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