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Finding the Third Proportional to 25,750 and 56,420

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Solution

The third proportional to 25,750 and 56,420 is: 123,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,750 : 56,420 = 56,420 : x
  2. Step 2: Convert to fraction form
    25,750/56,420 = 56,420/x
  3. Step 3: Cross multiply
    25,750x = 56,420 × 56,420
  4. Step 4: Simplify right side
    25,750x = 3,183,216,400
  5. Step 5: Solve for x
    x = 3,183,216,400/25,750
  6. Step 6: Final answer
    x = 123,620.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.