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Finding the Fourth Proportional to 81,798.42, 112,881.15 and 51,603.24

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Solution

The fourth proportional to 81,798.42, 112,881.15 and 51,603.24 is: 71,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,798.42 : 112,881.15 = 51,603.24 : x
  2. Step 2: Convert to fraction form
    81,798.42/112,881.15 = 51,603.24/x
  3. Step 3: Cross multiply
    81,798.42x = 112,881.15 × 51,603.24
  4. Step 4: Simplify right side
    81,798.42x = 5,825,033,074.93
  5. Step 5: Solve for x
    x = 5,825,033,074.93/81,798.42
  6. Step 6: Final answer
    x = 71,212.05

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