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Finding the Third Proportional to 30,719 and 48,846

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Solution

The third proportional to 30,719 and 48,846 is: 77,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,719 : 48,846 = 48,846 : x
  2. Step 2: Convert to fraction form
    30,719/48,846 = 48,846/x
  3. Step 3: Cross multiply
    30,719x = 48,846 × 48,846
  4. Step 4: Simplify right side
    30,719x = 2,385,931,716
  5. Step 5: Solve for x
    x = 2,385,931,716/30,719
  6. Step 6: Final answer
    x = 77,669.58

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.