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Finding the Fourth Proportional to 74,429.58, 111,739.14 and 48,243.90

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Solution

The fourth proportional to 74,429.58, 111,739.14 and 48,243.90 is: 72,427.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,429.58 : 111,739.14 = 48,243.90 : x
  2. Step 2: Convert to fraction form
    74,429.58/111,739.14 = 48,243.90/x
  3. Step 3: Cross multiply
    74,429.58x = 111,739.14 × 48,243.90
  4. Step 4: Simplify right side
    74,429.58x = 5,390,731,896.25
  5. Step 5: Solve for x
    x = 5,390,731,896.25/74,429.58
  6. Step 6: Final answer
    x = 72,427.28

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