Home / 95,008.78-131,118.21-54,721.68

Finding the Fourth Proportional to 95,008.78, 131,118.21 and 54,721.68

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Solution

The fourth proportional to 95,008.78, 131,118.21 and 54,721.68 is: 75,519.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,008.78 : 131,118.21 = 54,721.68 : x
  2. Step 2: Convert to fraction form
    95,008.78/131,118.21 = 54,721.68/x
  3. Step 3: Cross multiply
    95,008.78x = 131,118.21 × 54,721.68
  4. Step 4: Simplify right side
    95,008.78x = 7,175,008,238.10
  5. Step 5: Solve for x
    x = 7,175,008,238.10/95,008.78
  6. Step 6: Final answer
    x = 75,519.42

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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.