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Finding the Fourth Proportional to 40,900.81, 61,351.25 and 12,823.06

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Solution

The fourth proportional to 40,900.81, 61,351.25 and 12,823.06 is: 19,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,900.81 : 61,351.25 = 12,823.06 : x
  2. Step 2: Convert to fraction form
    40,900.81/61,351.25 = 12,823.06/x
  3. Step 3: Cross multiply
    40,900.81x = 61,351.25 × 12,823.06
  4. Step 4: Simplify right side
    40,900.81x = 786,710,759.83
  5. Step 5: Solve for x
    x = 786,710,759.83/40,900.81
  6. Step 6: Final answer
    x = 19,234.60

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