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Finding the Fourth Proportional to 67,289.10, 100,897.20 and 27,850.20

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Solution

The fourth proportional to 67,289.10, 100,897.20 and 27,850.20 is: 41,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,289.10 : 100,897.20 = 27,850.20 : x
  2. Step 2: Convert to fraction form
    67,289.10/100,897.20 = 27,850.20/x
  3. Step 3: Cross multiply
    67,289.10x = 100,897.20 × 27,850.20
  4. Step 4: Simplify right side
    67,289.10x = 2,810,007,199.44
  5. Step 5: Solve for x
    x = 2,810,007,199.44/67,289.10
  6. Step 6: Final answer
    x = 41,760.21

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1.5x scale

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.