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Finding the Third Proportional to 51,368 and 68,709

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Solution

The third proportional to 51,368 and 68,709 is: 91,904.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,368 : 68,709 = 68,709 : x
  2. Step 2: Convert to fraction form
    51,368/68,709 = 68,709/x
  3. Step 3: Cross multiply
    51,368x = 68,709 × 68,709
  4. Step 4: Simplify right side
    51,368x = 4,720,926,681
  5. Step 5: Solve for x
    x = 4,720,926,681/51,368
  6. Step 6: Final answer
    x = 91,904.04

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.