Home / 89,175.78-133,669.38-32,979.78

Finding the Fourth Proportional to 89,175.78, 133,669.38 and 32,979.78

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Solution

The fourth proportional to 89,175.78, 133,669.38 and 32,979.78 is: 49,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,175.78 : 133,669.38 = 32,979.78 : x
  2. Step 2: Convert to fraction form
    89,175.78/133,669.38 = 32,979.78/x
  3. Step 3: Cross multiply
    89,175.78x = 133,669.38 × 32,979.78
  4. Step 4: Simplify right side
    89,175.78x = 4,408,386,745.14
  5. Step 5: Solve for x
    x = 4,408,386,745.14/89,175.78
  6. Step 6: Final answer
    x = 49,434.80

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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.