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Finding the Third Proportional to 39,915 and 59,877

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Solution

The third proportional to 39,915 and 59,877 is: 89,822.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915 : 59,877 = 59,877 : x
  2. Step 2: Convert to fraction form
    39,915/59,877 = 59,877/x
  3. Step 3: Cross multiply
    39,915x = 59,877 × 59,877
  4. Step 4: Simplify right side
    39,915x = 3,585,255,129
  5. Step 5: Solve for x
    x = 3,585,255,129/39,915
  6. Step 6: Final answer
    x = 89,822.25

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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.