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Finding the Fourth Proportional to 98,309.41, 135,665.69 and 55,288.89

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Solution

The fourth proportional to 98,309.41, 135,665.69 and 55,288.89 is: 76,297.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,309.41 : 135,665.69 = 55,288.89 : x
  2. Step 2: Convert to fraction form
    98,309.41/135,665.69 = 55,288.89/x
  3. Step 3: Cross multiply
    98,309.41x = 135,665.69 × 55,288.89
  4. Step 4: Simplify right side
    98,309.41x = 7,500,804,456.41
  5. Step 5: Solve for x
    x = 7,500,804,456.41/98,309.41
  6. Step 6: Final answer
    x = 76,297.93

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