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Finding the Fourth Proportional to 66,870.45, 100,344.56 and 27,455.85

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Solution

The fourth proportional to 66,870.45, 100,344.56 and 27,455.85 is: 41,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,870.45 : 100,344.56 = 27,455.85 : x
  2. Step 2: Convert to fraction form
    66,870.45/100,344.56 = 27,455.85/x
  3. Step 3: Cross multiply
    66,870.45x = 100,344.56 × 27,455.85
  4. Step 4: Simplify right side
    66,870.45x = 2,755,045,050.40
  5. Step 5: Solve for x
    x = 2,755,045,050.40/66,870.45
  6. Step 6: Final answer
    x = 41,199.74

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