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Finding the Fourth Proportional to 56,363.25, 77,783.73 and 31,212.75

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Solution

The fourth proportional to 56,363.25, 77,783.73 and 31,212.75 is: 43,074.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,363.25 : 77,783.73 = 31,212.75 : x
  2. Step 2: Convert to fraction form
    56,363.25/77,783.73 = 31,212.75/x
  3. Step 3: Cross multiply
    56,363.25x = 77,783.73 × 31,212.75
  4. Step 4: Simplify right side
    56,363.25x = 2,427,844,118.56
  5. Step 5: Solve for x
    x = 2,427,844,118.56/56,363.25
  6. Step 6: Final answer
    x = 43,074.95

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