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Finding the Fourth Proportional to 53,505.20, 80,104.20 and 51,969.20

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Solution

The fourth proportional to 53,505.20, 80,104.20 and 51,969.20 is: 77,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,505.20 : 80,104.20 = 51,969.20 : x
  2. Step 2: Convert to fraction form
    53,505.20/80,104.20 = 51,969.20/x
  3. Step 3: Cross multiply
    53,505.20x = 80,104.20 × 51,969.20
  4. Step 4: Simplify right side
    53,505.20x = 4,162,951,190.64
  5. Step 5: Solve for x
    x = 4,162,951,190.64/53,505.20
  6. Step 6: Final answer
    x = 77,804.61

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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.