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Finding the Fourth Proportional to 81,484.31, 112,453.54 and 45,674.33

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Solution

The fourth proportional to 81,484.31, 112,453.54 and 45,674.33 is: 63,033.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,484.31 : 112,453.54 = 45,674.33 : x
  2. Step 2: Convert to fraction form
    81,484.31/112,453.54 = 45,674.33/x
  3. Step 3: Cross multiply
    81,484.31x = 112,453.54 × 45,674.33
  4. Step 4: Simplify right side
    81,484.31x = 5,136,239,419.17
  5. Step 5: Solve for x
    x = 5,136,239,419.17/81,484.31
  6. Step 6: Final answer
    x = 63,033.48

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