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Finding the Fourth Proportional to 66,546.20, 99,819.30 and 44,287.40

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Solution

The fourth proportional to 66,546.20, 99,819.30 and 44,287.40 is: 66,431.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,546.20 : 99,819.30 = 44,287.40 : x
  2. Step 2: Convert to fraction form
    66,546.20/99,819.30 = 44,287.40/x
  3. Step 3: Cross multiply
    66,546.20x = 99,819.30 × 44,287.40
  4. Step 4: Simplify right side
    66,546.20x = 4,420,737,266.82
  5. Step 5: Solve for x
    x = 4,420,737,266.82/66,546.20
  6. Step 6: Final answer
    x = 66,431.10

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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.