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Finding the Third Proportional to 21,000.75 and 45,692.25

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Solution

The third proportional to 21,000.75 and 45,692.25 is: 99,414.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000.75 : 45,692.25 = 45,692.25 : x
  2. Step 2: Convert to fraction form
    21,000.75/45,692.25 = 45,692.25/x
  3. Step 3: Cross multiply
    21,000.75x = 45,692.25 × 45,692.25
  4. Step 4: Simplify right side
    21,000.75x = 2,087,781,710.06
  5. Step 5: Solve for x
    x = 2,087,781,710.06/21,000.75
  6. Step 6: Final answer
    x = 99,414.63

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.