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Finding the Fourth Proportional to 84,143.76, 116,120.80 and 46,420.44

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Solution

The fourth proportional to 84,143.76, 116,120.80 and 46,420.44 is: 64,061.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,143.76 : 116,120.80 = 46,420.44 : x
  2. Step 2: Convert to fraction form
    84,143.76/116,120.80 = 46,420.44/x
  3. Step 3: Cross multiply
    84,143.76x = 116,120.80 × 46,420.44
  4. Step 4: Simplify right side
    84,143.76x = 5,390,378,629.15
  5. Step 5: Solve for x
    x = 5,390,378,629.15/84,143.76
  6. Step 6: Final answer
    x = 64,061.54

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