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Finding the Fourth Proportional to 53,977.20, 80,965.80 and 50,040.60

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Solution

The fourth proportional to 53,977.20, 80,965.80 and 50,040.60 is: 75,060.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,977.20 : 80,965.80 = 50,040.60 : x
  2. Step 2: Convert to fraction form
    53,977.20/80,965.80 = 50,040.60/x
  3. Step 3: Cross multiply
    53,977.20x = 80,965.80 × 50,040.60
  4. Step 4: Simplify right side
    53,977.20x = 4,051,577,211.48
  5. Step 5: Solve for x
    x = 4,051,577,211.48/53,977.20
  6. Step 6: Final answer
    x = 75,060.90

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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.