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Finding the Fourth Proportional to 48,986.80, 73,480.20 and 31,476.40

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Solution

The fourth proportional to 48,986.80, 73,480.20 and 31,476.40 is: 47,214.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,986.80 : 73,480.20 = 31,476.40 : x
  2. Step 2: Convert to fraction form
    48,986.80/73,480.20 = 31,476.40/x
  3. Step 3: Cross multiply
    48,986.80x = 73,480.20 × 31,476.40
  4. Step 4: Simplify right side
    48,986.80x = 2,312,892,167.28
  5. Step 5: Solve for x
    x = 2,312,892,167.28/48,986.80
  6. Step 6: Final answer
    x = 47,214.60

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