Home / 84,621.38-126,990.38-29,217.38

Finding the Fourth Proportional to 84,621.38, 126,990.38 and 29,217.38

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Solution

The fourth proportional to 84,621.38, 126,990.38 and 29,217.38 is: 43,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,621.38 : 126,990.38 = 29,217.38 : x
  2. Step 2: Convert to fraction form
    84,621.38/126,990.38 = 29,217.38/x
  3. Step 3: Cross multiply
    84,621.38x = 126,990.38 × 29,217.38
  4. Step 4: Simplify right side
    84,621.38x = 3,710,325,626.90
  5. Step 5: Solve for x
    x = 3,710,325,626.90/84,621.38
  6. Step 6: Final answer
    x = 43,846.20

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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.