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Finding the Fourth Proportional to 84,539.57, 126,864.72 and 31,949.06

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Solution

The fourth proportional to 84,539.57, 126,864.72 and 31,949.06 is: 47,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,539.57 : 126,864.72 = 31,949.06 : x
  2. Step 2: Convert to fraction form
    84,539.57/126,864.72 = 31,949.06/x
  3. Step 3: Cross multiply
    84,539.57x = 126,864.72 × 31,949.06
  4. Step 4: Simplify right side
    84,539.57x = 4,053,207,916.84
  5. Step 5: Solve for x
    x = 4,053,207,916.84/84,539.57
  6. Step 6: Final answer
    x = 47,944.51

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