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Finding the Fourth Proportional to 61,402.20, 92,103.30 and 21,960.60

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Solution

The fourth proportional to 61,402.20, 92,103.30 and 21,960.60 is: 32,940.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,402.20 : 92,103.30 = 21,960.60 : x
  2. Step 2: Convert to fraction form
    61,402.20/92,103.30 = 21,960.60/x
  3. Step 3: Cross multiply
    61,402.20x = 92,103.30 × 21,960.60
  4. Step 4: Simplify right side
    61,402.20x = 2,022,643,729.98
  5. Step 5: Solve for x
    x = 2,022,643,729.98/61,402.20
  6. Step 6: Final answer
    x = 32,940.90

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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.