Home / 56,639.13-78,163.97-31,146.54

Finding the Fourth Proportional to 56,639.13, 78,163.97 and 31,146.54

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Solution

The fourth proportional to 56,639.13, 78,163.97 and 31,146.54 is: 42,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,639.13 : 78,163.97 = 31,146.54 : x
  2. Step 2: Convert to fraction form
    56,639.13/78,163.97 = 31,146.54/x
  3. Step 3: Cross multiply
    56,639.13x = 78,163.97 × 31,146.54
  4. Step 4: Simplify right side
    56,639.13x = 2,434,537,062.43
  5. Step 5: Solve for x
    x = 2,434,537,062.43/56,639.13
  6. Step 6: Final answer
    x = 42,983.31

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