Home / 54,351.20-81,699.60-51,240.80

Finding the Fourth Proportional to 54,351.20, 81,699.60 and 51,240.80

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Solution

The fourth proportional to 54,351.20, 81,699.60 and 51,240.80 is: 77,024.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,351.20 : 81,699.60 = 51,240.80 : x
  2. Step 2: Convert to fraction form
    54,351.20/81,699.60 = 51,240.80/x
  3. Step 3: Cross multiply
    54,351.20x = 81,699.60 × 51,240.80
  4. Step 4: Simplify right side
    54,351.20x = 4,186,352,863.68
  5. Step 5: Solve for x
    x = 4,186,352,863.68/54,351.20
  6. Step 6: Final answer
    x = 77,024.11

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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.