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Finding the Fourth Proportional to 70,647.40, 97,488.90 and 40,432.60

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Solution

The fourth proportional to 70,647.40, 97,488.90 and 40,432.60 is: 55,794.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,647.40 : 97,488.90 = 40,432.60 : x
  2. Step 2: Convert to fraction form
    70,647.40/97,488.90 = 40,432.60/x
  3. Step 3: Cross multiply
    70,647.40x = 97,488.90 × 40,432.60
  4. Step 4: Simplify right side
    70,647.40x = 3,941,729,698.14
  5. Step 5: Solve for x
    x = 3,941,729,698.14/70,647.40
  6. Step 6: Final answer
    x = 55,794.41

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