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Finding the Third Proportional to 30,159 and 48,757.50

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Solution

The third proportional to 30,159 and 48,757.50 is: 78,825.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,159 : 48,757.50 = 48,757.50 : x
  2. Step 2: Convert to fraction form
    30,159/48,757.50 = 48,757.50/x
  3. Step 3: Cross multiply
    30,159x = 48,757.50 × 48,757.50
  4. Step 4: Simplify right side
    30,159x = 2,377,293,806.25
  5. Step 5: Solve for x
    x = 2,377,293,806.25/30,159
  6. Step 6: Final answer
    x = 78,825.35

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.