Home / 79,442.72-119,178.78-26,137.70

Finding the Fourth Proportional to 79,442.72, 119,178.78 and 26,137.70

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Solution

The fourth proportional to 79,442.72, 119,178.78 and 26,137.70 is: 39,211.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,442.72 : 119,178.78 = 26,137.70 : x
  2. Step 2: Convert to fraction form
    79,442.72/119,178.78 = 26,137.70/x
  3. Step 3: Cross multiply
    79,442.72x = 119,178.78 × 26,137.70
  4. Step 4: Simplify right side
    79,442.72x = 3,115,059,198.01
  5. Step 5: Solve for x
    x = 3,115,059,198.01/79,442.72
  6. Step 6: Final answer
    x = 39,211.39

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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.