Home / 53,821.40-80,732.10-34,122.20

Finding the Fourth Proportional to 53,821.40, 80,732.10 and 34,122.20

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Solution

The fourth proportional to 53,821.40, 80,732.10 and 34,122.20 is: 51,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,821.40 : 80,732.10 = 34,122.20 : x
  2. Step 2: Convert to fraction form
    53,821.40/80,732.10 = 34,122.20/x
  3. Step 3: Cross multiply
    53,821.40x = 80,732.10 × 34,122.20
  4. Step 4: Simplify right side
    53,821.40x = 2,754,756,862.62
  5. Step 5: Solve for x
    x = 2,754,756,862.62/53,821.40
  6. Step 6: Final answer
    x = 51,183.30

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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.