Home / 55,349.48-76,375.20-31,147.44

Finding the Fourth Proportional to 55,349.48, 76,375.20 and 31,147.44

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Solution

The fourth proportional to 55,349.48, 76,375.20 and 31,147.44 is: 42,979.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,349.48 : 76,375.20 = 31,147.44 : x
  2. Step 2: Convert to fraction form
    55,349.48/76,375.20 = 31,147.44/x
  3. Step 3: Cross multiply
    55,349.48x = 76,375.20 × 31,147.44
  4. Step 4: Simplify right side
    55,349.48x = 2,378,891,789.88
  5. Step 5: Solve for x
    x = 2,378,891,789.88/55,349.48
  6. Step 6: Final answer
    x = 42,979.48

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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.