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Finding the Fourth Proportional to 54,994.24, 75,891 and 31,120.48

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Solution

The fourth proportional to 54,994.24, 75,891 and 31,120.48 is: 42,945.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,994.24 : 75,891 = 31,120.48 : x
  2. Step 2: Convert to fraction form
    54,994.24/75,891 = 31,120.48/x
  3. Step 3: Cross multiply
    54,994.24x = 75,891 × 31,120.48
  4. Step 4: Simplify right side
    54,994.24x = 2,361,764,347.68
  5. Step 5: Solve for x
    x = 2,361,764,347.68/54,994.24
  6. Step 6: Final answer
    x = 42,945.67

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