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Finding the Third Proportional to 35,510 and 53,421

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Solution

The third proportional to 35,510 and 53,421 is: 80,366.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,510 : 53,421 = 53,421 : x
  2. Step 2: Convert to fraction form
    35,510/53,421 = 53,421/x
  3. Step 3: Cross multiply
    35,510x = 53,421 × 53,421
  4. Step 4: Simplify right side
    35,510x = 2,853,803,241
  5. Step 5: Solve for x
    x = 2,853,803,241/35,510
  6. Step 6: Final answer
    x = 80,366.19

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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.