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Finding the Fourth Proportional to 53,475.20, 80,212.80 and 49,155.20

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Solution

The fourth proportional to 53,475.20, 80,212.80 and 49,155.20 is: 73,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,475.20 : 80,212.80 = 49,155.20 : x
  2. Step 2: Convert to fraction form
    53,475.20/80,212.80 = 49,155.20/x
  3. Step 3: Cross multiply
    53,475.20x = 80,212.80 × 49,155.20
  4. Step 4: Simplify right side
    53,475.20x = 3,942,876,226.56
  5. Step 5: Solve for x
    x = 3,942,876,226.56/53,475.20
  6. Step 6: Final answer
    x = 73,732.80

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