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Finding the Fourth Proportional to 77,310.25, 106,688.15 and 43,782.73

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Solution

The fourth proportional to 77,310.25, 106,688.15 and 43,782.73 is: 60,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,310.25 : 106,688.15 = 43,782.73 : x
  2. Step 2: Convert to fraction form
    77,310.25/106,688.15 = 43,782.73/x
  3. Step 3: Cross multiply
    77,310.25x = 106,688.15 × 43,782.73
  4. Step 4: Simplify right side
    77,310.25x = 4,671,098,246.74
  5. Step 5: Solve for x
    x = 4,671,098,246.74/77,310.25
  6. Step 6: Final answer
    x = 60,420.17

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