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Finding the Third Proportional to 30,340 and 47,491

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Solution

The third proportional to 30,340 and 47,491 is: 74,337.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340 : 47,491 = 47,491 : x
  2. Step 2: Convert to fraction form
    30,340/47,491 = 47,491/x
  3. Step 3: Cross multiply
    30,340x = 47,491 × 47,491
  4. Step 4: Simplify right side
    30,340x = 2,255,395,081
  5. Step 5: Solve for x
    x = 2,255,395,081/30,340
  6. Step 6: Final answer
    x = 74,337.35

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.