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Finding the Fourth Proportional to 77,246.40, 115,871.76 and 27,319.44

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Solution

The fourth proportional to 77,246.40, 115,871.76 and 27,319.44 is: 40,979.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,246.40 : 115,871.76 = 27,319.44 : x
  2. Step 2: Convert to fraction form
    77,246.40/115,871.76 = 27,319.44/x
  3. Step 3: Cross multiply
    77,246.40x = 115,871.76 × 27,319.44
  4. Step 4: Simplify right side
    77,246.40x = 3,165,551,595.01
  5. Step 5: Solve for x
    x = 3,165,551,595.01/77,246.40
  6. Step 6: Final answer
    x = 40,979.92

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