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Finding the Fourth Proportional to 66,450.80, 99,676.20 and 27,036.20

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Solution

The fourth proportional to 66,450.80, 99,676.20 and 27,036.20 is: 40,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,450.80 : 99,676.20 = 27,036.20 : x
  2. Step 2: Convert to fraction form
    66,450.80/99,676.20 = 27,036.20/x
  3. Step 3: Cross multiply
    66,450.80x = 99,676.20 × 27,036.20
  4. Step 4: Simplify right side
    66,450.80x = 2,694,865,678.44
  5. Step 5: Solve for x
    x = 2,694,865,678.44/66,450.80
  6. Step 6: Final answer
    x = 40,554.30

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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.