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Finding the Fourth Proportional to 56,401.80, 84,700.20 and 54,652.20

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Solution

The fourth proportional to 56,401.80, 84,700.20 and 54,652.20 is: 82,072.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,401.80 : 84,700.20 = 54,652.20 : x
  2. Step 2: Convert to fraction form
    56,401.80/84,700.20 = 54,652.20/x
  3. Step 3: Cross multiply
    56,401.80x = 84,700.20 × 54,652.20
  4. Step 4: Simplify right side
    56,401.80x = 4,629,052,270.44
  5. Step 5: Solve for x
    x = 4,629,052,270.44/56,401.80
  6. Step 6: Final answer
    x = 82,072.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.