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Finding the Fourth Proportional to 74,580.96, 111,871.68 and 51,136.32

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Solution

The fourth proportional to 74,580.96, 111,871.68 and 51,136.32 is: 76,704.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,580.96 : 111,871.68 = 51,136.32 : x
  2. Step 2: Convert to fraction form
    74,580.96/111,871.68 = 51,136.32/x
  3. Step 3: Cross multiply
    74,580.96x = 111,871.68 × 51,136.32
  4. Step 4: Simplify right side
    74,580.96x = 5,720,706,027.42
  5. Step 5: Solve for x
    x = 5,720,706,027.42/74,580.96
  6. Step 6: Final answer
    x = 76,704.64

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