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Finding the Fourth Proportional to 275,439.16, 413,160.58 and 75,780.64

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Solution

The fourth proportional to 275,439.16, 413,160.58 and 75,780.64 is: 113,671.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,439.16 : 413,160.58 = 75,780.64 : x
  2. Step 2: Convert to fraction form
    275,439.16/413,160.58 = 75,780.64/x
  3. Step 3: Cross multiply
    275,439.16x = 413,160.58 × 75,780.64
  4. Step 4: Simplify right side
    275,439.16x = 31,309,573,175.17
  5. Step 5: Solve for x
    x = 31,309,573,175.17/275,439.16
  6. Step 6: Final answer
    x = 113,671.47

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