Home / 71,288.72-106,942.80-29,726

Finding the Fourth Proportional to 71,288.72, 106,942.80 and 29,726

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Solution

The fourth proportional to 71,288.72, 106,942.80 and 29,726 is: 44,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,288.72 : 106,942.80 = 29,726 : x
  2. Step 2: Convert to fraction form
    71,288.72/106,942.80 = 29,726/x
  3. Step 3: Cross multiply
    71,288.72x = 106,942.80 × 29,726
  4. Step 4: Simplify right side
    71,288.72x = 3,178,981,672.80
  5. Step 5: Solve for x
    x = 3,178,981,672.80/71,288.72
  6. Step 6: Final answer
    x = 44,593.05

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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.