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Finding the Fourth Proportional to 81,510.45, 112,489.07 and 45,698.73

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Solution

The fourth proportional to 81,510.45, 112,489.07 and 45,698.73 is: 63,066.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,510.45 : 112,489.07 = 45,698.73 : x
  2. Step 2: Convert to fraction form
    81,510.45/112,489.07 = 45,698.73/x
  3. Step 3: Cross multiply
    81,510.45x = 112,489.07 × 45,698.73
  4. Step 4: Simplify right side
    81,510.45x = 5,140,607,409.39
  5. Step 5: Solve for x
    x = 5,140,607,409.39/81,510.45
  6. Step 6: Final answer
    x = 63,066.85

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