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Finding the Third Proportional to 30,610 and 65,888

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Solution

The third proportional to 30,610 and 65,888 is: 141,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,610 : 65,888 = 65,888 : x
  2. Step 2: Convert to fraction form
    30,610/65,888 = 65,888/x
  3. Step 3: Cross multiply
    30,610x = 65,888 × 65,888
  4. Step 4: Simplify right side
    30,610x = 4,341,228,544
  5. Step 5: Solve for x
    x = 4,341,228,544/30,610
  6. Step 6: Final answer
    x = 141,823.87

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.