Home / 71,818.20-107,732.70-19,226.52

Finding the Fourth Proportional to 71,818.20, 107,732.70 and 19,226.52

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Solution

The fourth proportional to 71,818.20, 107,732.70 and 19,226.52 is: 28,841.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,818.20 : 107,732.70 = 19,226.52 : x
  2. Step 2: Convert to fraction form
    71,818.20/107,732.70 = 19,226.52/x
  3. Step 3: Cross multiply
    71,818.20x = 107,732.70 × 19,226.52
  4. Step 4: Simplify right side
    71,818.20x = 2,071,324,911.20
  5. Step 5: Solve for x
    x = 2,071,324,911.20/71,818.20
  6. Step 6: Final answer
    x = 28,841.23

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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.