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Finding the Third Proportional to 21,113.50 and 45,575

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Solution

The third proportional to 21,113.50 and 45,575 is: 98,376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,113.50 : 45,575 = 45,575 : x
  2. Step 2: Convert to fraction form
    21,113.50/45,575 = 45,575/x
  3. Step 3: Cross multiply
    21,113.50x = 45,575 × 45,575
  4. Step 4: Simplify right side
    21,113.50x = 2,077,080,625
  5. Step 5: Solve for x
    x = 2,077,080,625/21,113.50
  6. Step 6: Final answer
    x = 98,376.90

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.