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Finding the Fourth Proportional to 77,140.80, 115,719.71 and 24,538.01

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Solution

The fourth proportional to 77,140.80, 115,719.71 and 24,538.01 is: 36,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,140.80 : 115,719.71 = 24,538.01 : x
  2. Step 2: Convert to fraction form
    77,140.80/115,719.71 = 24,538.01/x
  3. Step 3: Cross multiply
    77,140.80x = 115,719.71 × 24,538.01
  4. Step 4: Simplify right side
    77,140.80x = 2,839,530,699.89
  5. Step 5: Solve for x
    x = 2,839,530,699.89/77,140.80
  6. Step 6: Final answer
    x = 36,809.71

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