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Finding the Third Proportional to 39,910 and 59,865

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Solution

The third proportional to 39,910 and 59,865 is: 89,797.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,910 : 59,865 = 59,865 : x
  2. Step 2: Convert to fraction form
    39,910/59,865 = 59,865/x
  3. Step 3: Cross multiply
    39,910x = 59,865 × 59,865
  4. Step 4: Simplify right side
    39,910x = 3,583,818,225
  5. Step 5: Solve for x
    x = 3,583,818,225/39,910
  6. Step 6: Final answer
    x = 89,797.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.