Home / 79,196.82-109,264.26-45,180.78

Finding the Fourth Proportional to 79,196.82, 109,264.26 and 45,180.78

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Solution

The fourth proportional to 79,196.82, 109,264.26 and 45,180.78 is: 62,333.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,196.82 : 109,264.26 = 45,180.78 : x
  2. Step 2: Convert to fraction form
    79,196.82/109,264.26 = 45,180.78/x
  3. Step 3: Cross multiply
    79,196.82x = 109,264.26 × 45,180.78
  4. Step 4: Simplify right side
    79,196.82x = 4,936,644,492.92
  5. Step 5: Solve for x
    x = 4,936,644,492.92/79,196.82
  6. Step 6: Final answer
    x = 62,333.87

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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.