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Finding the Third Proportional to 31,163.50 and 67,585

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Solution

The third proportional to 31,163.50 and 67,585 is: 146,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,163.50 : 67,585 = 67,585 : x
  2. Step 2: Convert to fraction form
    31,163.50/67,585 = 67,585/x
  3. Step 3: Cross multiply
    31,163.50x = 67,585 × 67,585
  4. Step 4: Simplify right side
    31,163.50x = 4,567,732,225
  5. Step 5: Solve for x
    x = 4,567,732,225/31,163.50
  6. Step 6: Final answer
    x = 146,573.15

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.