Home / 66,311.25-99,481.85-21,937.89

Finding the Fourth Proportional to 66,311.25, 99,481.85 and 21,937.89

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Solution

The fourth proportional to 66,311.25, 99,481.85 and 21,937.89 is: 32,911.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,311.25 : 99,481.85 = 21,937.89 : x
  2. Step 2: Convert to fraction form
    66,311.25/99,481.85 = 21,937.89/x
  3. Step 3: Cross multiply
    66,311.25x = 99,481.85 × 21,937.89
  4. Step 4: Simplify right side
    66,311.25x = 2,182,421,882.30
  5. Step 5: Solve for x
    x = 2,182,421,882.30/66,311.25
  6. Step 6: Final answer
    x = 32,911.79

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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.