Home / 79,631.70-109,893.17-43,821.38

Finding the Fourth Proportional to 79,631.70, 109,893.17 and 43,821.38

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Solution

The fourth proportional to 79,631.70, 109,893.17 and 43,821.38 is: 60,474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,631.70 : 109,893.17 = 43,821.38 : x
  2. Step 2: Convert to fraction form
    79,631.70/109,893.17 = 43,821.38/x
  3. Step 3: Cross multiply
    79,631.70x = 109,893.17 × 43,821.38
  4. Step 4: Simplify right side
    79,631.70x = 4,815,670,361.97
  5. Step 5: Solve for x
    x = 4,815,670,361.97/79,631.70
  6. Step 6: Final answer
    x = 60,474.29

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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.