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Finding the Fourth Proportional to 54,665.68, 81,998.56 and 42,203.92

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Solution

The fourth proportional to 54,665.68, 81,998.56 and 42,203.92 is: 63,305.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,665.68 : 81,998.56 = 42,203.92 : x
  2. Step 2: Convert to fraction form
    54,665.68/81,998.56 = 42,203.92/x
  3. Step 3: Cross multiply
    54,665.68x = 81,998.56 × 42,203.92
  4. Step 4: Simplify right side
    54,665.68x = 3,460,660,666.36
  5. Step 5: Solve for x
    x = 3,460,660,666.36/54,665.68
  6. Step 6: Final answer
    x = 63,305.91

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