Home / 54,044.48-74,560.20-31,379.60

Finding the Fourth Proportional to 54,044.48, 74,560.20 and 31,379.60

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Solution

The fourth proportional to 54,044.48, 74,560.20 and 31,379.60 is: 43,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,044.48 : 74,560.20 = 31,379.60 : x
  2. Step 2: Convert to fraction form
    54,044.48/74,560.20 = 31,379.60/x
  3. Step 3: Cross multiply
    54,044.48x = 74,560.20 × 31,379.60
  4. Step 4: Simplify right side
    54,044.48x = 2,339,669,251.92
  5. Step 5: Solve for x
    x = 2,339,669,251.92/54,044.48
  6. Step 6: Final answer
    x = 43,291.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.