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Finding the Fourth Proportional to 67,440.57, 101,205.99 and 27,997.71

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Solution

The fourth proportional to 67,440.57, 101,205.99 and 27,997.71 is: 42,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,440.57 : 101,205.99 = 27,997.71 : x
  2. Step 2: Convert to fraction form
    67,440.57/101,205.99 = 27,997.71/x
  3. Step 3: Cross multiply
    67,440.57x = 101,205.99 × 27,997.71
  4. Step 4: Simplify right side
    67,440.57x = 2,833,535,958.28
  5. Step 5: Solve for x
    x = 2,833,535,958.28/67,440.57
  6. Step 6: Final answer
    x = 42,015.30

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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.