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Finding the Fourth Proportional to 71,524.67, 107,306.36 and 21,606.40

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Solution

The fourth proportional to 71,524.67, 107,306.36 and 21,606.40 is: 32,415.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,524.67 : 107,306.36 = 21,606.40 : x
  2. Step 2: Convert to fraction form
    71,524.67/107,306.36 = 21,606.40/x
  3. Step 3: Cross multiply
    71,524.67x = 107,306.36 × 21,606.40
  4. Step 4: Simplify right side
    71,524.67x = 2,318,503,841.43
  5. Step 5: Solve for x
    x = 2,318,503,841.43/71,524.67
  6. Step 6: Final answer
    x = 32,415.44

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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.