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Finding the Fourth Proportional to 51,775.91, 77,550.04 and 42,789.40

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Solution

The fourth proportional to 51,775.91, 77,550.04 and 42,789.40 is: 64,090.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,775.91 : 77,550.04 = 42,789.40 : x
  2. Step 2: Convert to fraction form
    51,775.91/77,550.04 = 42,789.40/x
  3. Step 3: Cross multiply
    51,775.91x = 77,550.04 × 42,789.40
  4. Step 4: Simplify right side
    51,775.91x = 3,318,319,681.58
  5. Step 5: Solve for x
    x = 3,318,319,681.58/51,775.91
  6. Step 6: Final answer
    x = 64,090.03

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