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Finding the Fourth Proportional to 78,809.95, 108,757.70 and 50,515.62

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Solution

The fourth proportional to 78,809.95, 108,757.70 and 50,515.62 is: 69,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,809.95 : 108,757.70 = 50,515.62 : x
  2. Step 2: Convert to fraction form
    78,809.95/108,757.70 = 50,515.62/x
  3. Step 3: Cross multiply
    78,809.95x = 108,757.70 × 50,515.62
  4. Step 4: Simplify right side
    78,809.95x = 5,493,961,848.91
  5. Step 5: Solve for x
    x = 5,493,961,848.91/78,809.95
  6. Step 6: Final answer
    x = 69,711.53

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