Home / 83,821.50-115,653.40-53,183.44

Finding the Fourth Proportional to 83,821.50, 115,653.40 and 53,183.44

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Solution

The fourth proportional to 83,821.50, 115,653.40 and 53,183.44 is: 73,380.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,821.50 : 115,653.40 = 53,183.44 : x
  2. Step 2: Convert to fraction form
    83,821.50/115,653.40 = 53,183.44/x
  3. Step 3: Cross multiply
    83,821.50x = 115,653.40 × 53,183.44
  4. Step 4: Simplify right side
    83,821.50x = 6,150,845,659.70
  5. Step 5: Solve for x
    x = 6,150,845,659.70/83,821.50
  6. Step 6: Final answer
    x = 73,380.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.