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Finding the Fourth Proportional to 79,682, 109,961.16 and 44,354

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Solution

The fourth proportional to 79,682, 109,961.16 and 44,354 is: 61,208.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,682 : 109,961.16 = 44,354 : x
  2. Step 2: Convert to fraction form
    79,682/109,961.16 = 44,354/x
  3. Step 3: Cross multiply
    79,682x = 109,961.16 × 44,354
  4. Step 4: Simplify right side
    79,682x = 4,877,217,290.64
  5. Step 5: Solve for x
    x = 4,877,217,290.64/79,682
  6. Step 6: Final answer
    x = 61,208.52

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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.