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Finding the Fourth Proportional to 61,241.80, 91,841.10 and 21,800.20

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Solution

The fourth proportional to 61,241.80, 91,841.10 and 21,800.20 is: 32,692.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,241.80 : 91,841.10 = 21,800.20 : x
  2. Step 2: Convert to fraction form
    61,241.80/91,841.10 = 21,800.20/x
  3. Step 3: Cross multiply
    61,241.80x = 91,841.10 × 21,800.20
  4. Step 4: Simplify right side
    61,241.80x = 2,002,154,348.22
  5. Step 5: Solve for x
    x = 2,002,154,348.22/61,241.80
  6. Step 6: Final answer
    x = 32,692.61

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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.