Home / 71,060.28-106,590.41-21,141.09

Finding the Fourth Proportional to 71,060.28, 106,590.41 and 21,141.09

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Solution

The fourth proportional to 71,060.28, 106,590.41 and 21,141.09 is: 31,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,060.28 : 106,590.41 = 21,141.09 : x
  2. Step 2: Convert to fraction form
    71,060.28/106,590.41 = 21,141.09/x
  3. Step 3: Cross multiply
    71,060.28x = 106,590.41 × 21,141.09
  4. Step 4: Simplify right side
    71,060.28x = 2,253,436,812.29
  5. Step 5: Solve for x
    x = 2,253,436,812.29/71,060.28
  6. Step 6: Final answer
    x = 31,711.63

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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.