Home / 66,081.38-99,121.22-16,161.89

Finding the Fourth Proportional to 66,081.38, 99,121.22 and 16,161.89

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Solution

The fourth proportional to 66,081.38, 99,121.22 and 16,161.89 is: 24,242.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,081.38 : 99,121.22 = 16,161.89 : x
  2. Step 2: Convert to fraction form
    66,081.38/99,121.22 = 16,161.89/x
  3. Step 3: Cross multiply
    66,081.38x = 99,121.22 × 16,161.89
  4. Step 4: Simplify right side
    66,081.38x = 1,601,986,173.50
  5. Step 5: Solve for x
    x = 1,601,986,173.50/66,081.38
  6. Step 6: Final answer
    x = 24,242.63

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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.