Home / 54,234.40-81,351.60-53,456.80

Finding the Fourth Proportional to 54,234.40, 81,351.60 and 53,456.80

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Solution

The fourth proportional to 54,234.40, 81,351.60 and 53,456.80 is: 80,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,234.40 : 81,351.60 = 53,456.80 : x
  2. Step 2: Convert to fraction form
    54,234.40/81,351.60 = 53,456.80/x
  3. Step 3: Cross multiply
    54,234.40x = 81,351.60 × 53,456.80
  4. Step 4: Simplify right side
    54,234.40x = 4,348,796,210.88
  5. Step 5: Solve for x
    x = 4,348,796,210.88/54,234.40
  6. Step 6: Final answer
    x = 80,185.20

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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.