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Finding the Third Proportional to 29,213 and 42,781

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Solution

The third proportional to 29,213 and 42,781 is: 62,650.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,213 : 42,781 = 42,781 : x
  2. Step 2: Convert to fraction form
    29,213/42,781 = 42,781/x
  3. Step 3: Cross multiply
    29,213x = 42,781 × 42,781
  4. Step 4: Simplify right side
    29,213x = 1,830,213,961
  5. Step 5: Solve for x
    x = 1,830,213,961/29,213
  6. Step 6: Final answer
    x = 62,650.67

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.