Home / 73,821.40-110,732.10-21,227.80

Finding the Fourth Proportional to 73,821.40, 110,732.10 and 21,227.80

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Solution

The fourth proportional to 73,821.40, 110,732.10 and 21,227.80 is: 31,841.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,821.40 : 110,732.10 = 21,227.80 : x
  2. Step 2: Convert to fraction form
    73,821.40/110,732.10 = 21,227.80/x
  3. Step 3: Cross multiply
    73,821.40x = 110,732.10 × 21,227.80
  4. Step 4: Simplify right side
    73,821.40x = 2,350,598,872.38
  5. Step 5: Solve for x
    x = 2,350,598,872.38/73,821.40
  6. Step 6: Final answer
    x = 31,841.70

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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.