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Finding the Fourth Proportional to 67,993.80, 101,780.58 and 66,997.41

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Solution

The fourth proportional to 67,993.80, 101,780.58 and 66,997.41 is: 100,289.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,993.80 : 101,780.58 = 66,997.41 : x
  2. Step 2: Convert to fraction form
    67,993.80/101,780.58 = 66,997.41/x
  3. Step 3: Cross multiply
    67,993.80x = 101,780.58 × 66,997.41
  4. Step 4: Simplify right side
    67,993.80x = 6,819,035,248.30
  5. Step 5: Solve for x
    x = 6,819,035,248.30/67,993.80
  6. Step 6: Final answer
    x = 100,289.07

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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.