Home / 54,975.36-82,560-40,939.20

Finding the Fourth Proportional to 54,975.36, 82,560 and 40,939.20

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Solution

The fourth proportional to 54,975.36, 82,560 and 40,939.20 is: 61,481.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,975.36 : 82,560 = 40,939.20 : x
  2. Step 2: Convert to fraction form
    54,975.36/82,560 = 40,939.20/x
  3. Step 3: Cross multiply
    54,975.36x = 82,560 × 40,939.20
  4. Step 4: Simplify right side
    54,975.36x = 3,379,940,352.00
  5. Step 5: Solve for x
    x = 3,379,940,352.00/54,975.36
  6. Step 6: Final answer
    x = 61,481.00

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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.