Home / 54,697.78-82,071.38-31,324.22

Finding the Fourth Proportional to 54,697.78, 82,071.38 and 31,324.22

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Solution

The fourth proportional to 54,697.78, 82,071.38 and 31,324.22 is: 47,000.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,697.78 : 82,071.38 = 31,324.22 : x
  2. Step 2: Convert to fraction form
    54,697.78/82,071.38 = 31,324.22/x
  3. Step 3: Cross multiply
    54,697.78x = 82,071.38 × 31,324.22
  4. Step 4: Simplify right side
    54,697.78x = 2,570,821,762.35
  5. Step 5: Solve for x
    x = 2,570,821,762.35/54,697.78
  6. Step 6: Final answer
    x = 47,000.48

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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.