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Finding the Third Proportional to 51,681 and 77,522

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Solution

The third proportional to 51,681 and 77,522 is: 116,283.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,681 : 77,522 = 77,522 : x
  2. Step 2: Convert to fraction form
    51,681/77,522 = 77,522/x
  3. Step 3: Cross multiply
    51,681x = 77,522 × 77,522
  4. Step 4: Simplify right side
    51,681x = 6,009,660,484
  5. Step 5: Solve for x
    x = 6,009,660,484/51,681
  6. Step 6: Final answer
    x = 116,283.75

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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.