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Finding the Fourth Proportional to 66,000.20, 99,000.30 and 16,079.90

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Solution

The fourth proportional to 66,000.20, 99,000.30 and 16,079.90 is: 24,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,000.20 : 99,000.30 = 16,079.90 : x
  2. Step 2: Convert to fraction form
    66,000.20/99,000.30 = 16,079.90/x
  3. Step 3: Cross multiply
    66,000.20x = 99,000.30 × 16,079.90
  4. Step 4: Simplify right side
    66,000.20x = 1,591,914,923.97
  5. Step 5: Solve for x
    x = 1,591,914,923.97/66,000.20
  6. Step 6: Final answer
    x = 24,119.85

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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.