Home / 67,268.10-100,865.70-27,780.60

Finding the Fourth Proportional to 67,268.10, 100,865.70 and 27,780.60

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Solution

The fourth proportional to 67,268.10, 100,865.70 and 27,780.60 is: 41,655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,268.10 : 100,865.70 = 27,780.60 : x
  2. Step 2: Convert to fraction form
    67,268.10/100,865.70 = 27,780.60/x
  3. Step 3: Cross multiply
    67,268.10x = 100,865.70 × 27,780.60
  4. Step 4: Simplify right side
    67,268.10x = 2,802,109,665.42
  5. Step 5: Solve for x
    x = 2,802,109,665.42/67,268.10
  6. Step 6: Final answer
    x = 41,655.85

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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.