Home / 66,301.20-99,469.08-21,934.80

Finding the Fourth Proportional to 66,301.20, 99,469.08 and 21,934.80

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Solution

The fourth proportional to 66,301.20, 99,469.08 and 21,934.80 is: 32,907.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,301.20 : 99,469.08 = 21,934.80 : x
  2. Step 2: Convert to fraction form
    66,301.20/99,469.08 = 21,934.80/x
  3. Step 3: Cross multiply
    66,301.20x = 99,469.08 × 21,934.80
  4. Step 4: Simplify right side
    66,301.20x = 2,181,834,375.98
  5. Step 5: Solve for x
    x = 2,181,834,375.98/66,301.20
  6. Step 6: Final answer
    x = 32,907.92

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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.