Home / 69,116.22-103,692.43-21,729.39

Finding the Fourth Proportional to 69,116.22, 103,692.43 and 21,729.39

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Solution

The fourth proportional to 69,116.22, 103,692.43 and 21,729.39 is: 32,599.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,116.22 : 103,692.43 = 21,729.39 : x
  2. Step 2: Convert to fraction form
    69,116.22/103,692.43 = 21,729.39/x
  3. Step 3: Cross multiply
    69,116.22x = 103,692.43 × 21,729.39
  4. Step 4: Simplify right side
    69,116.22x = 2,253,173,251.52
  5. Step 5: Solve for x
    x = 2,253,173,251.52/69,116.22
  6. Step 6: Final answer
    x = 32,599.78

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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.