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Finding the Fourth Proportional to 60,992.20, 91,488.30 and 21,553.30

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Solution

The fourth proportional to 60,992.20, 91,488.30 and 21,553.30 is: 32,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,992.20 : 91,488.30 = 21,553.30 : x
  2. Step 2: Convert to fraction form
    60,992.20/91,488.30 = 21,553.30/x
  3. Step 3: Cross multiply
    60,992.20x = 91,488.30 × 21,553.30
  4. Step 4: Simplify right side
    60,992.20x = 1,971,874,776.39
  5. Step 5: Solve for x
    x = 1,971,874,776.39/60,992.20
  6. Step 6: Final answer
    x = 32,329.95

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Similar ratio
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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.