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Finding the Fourth Proportional to 55,345.92, 83,063.12 and 28,699.48

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Solution

The fourth proportional to 55,345.92, 83,063.12 and 28,699.48 is: 43,072.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,345.92 : 83,063.12 = 28,699.48 : x
  2. Step 2: Convert to fraction form
    55,345.92/83,063.12 = 28,699.48/x
  3. Step 3: Cross multiply
    55,345.92x = 83,063.12 × 28,699.48
  4. Step 4: Simplify right side
    55,345.92x = 2,383,868,351.18
  5. Step 5: Solve for x
    x = 2,383,868,351.18/55,345.92
  6. Step 6: Final answer
    x = 43,072.16

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