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Finding the Fourth Proportional to 52,047.08, 78,073.82 and 20,878.28

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Solution

The fourth proportional to 52,047.08, 78,073.82 and 20,878.28 is: 31,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,047.08 : 78,073.82 = 20,878.28 : x
  2. Step 2: Convert to fraction form
    52,047.08/78,073.82 = 20,878.28/x
  3. Step 3: Cross multiply
    52,047.08x = 78,073.82 × 20,878.28
  4. Step 4: Simplify right side
    52,047.08x = 1,630,047,074.63
  5. Step 5: Solve for x
    x = 1,630,047,074.63/52,047.08
  6. Step 6: Final answer
    x = 31,318.70

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