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Finding the Fourth Proportional to 51,956.44, 77,890.92 and 20,774.68

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Solution

The fourth proportional to 51,956.44, 77,890.92 and 20,774.68 is: 31,144.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,956.44 : 77,890.92 = 20,774.68 : x
  2. Step 2: Convert to fraction form
    51,956.44/77,890.92 = 20,774.68/x
  3. Step 3: Cross multiply
    51,956.44x = 77,890.92 × 20,774.68
  4. Step 4: Simplify right side
    51,956.44x = 1,618,158,937.91
  5. Step 5: Solve for x
    x = 1,618,158,937.91/51,956.44
  6. Step 6: Final answer
    x = 31,144.53

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