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Finding the Third Proportional to 21,265.13 and 45,780

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Solution

The third proportional to 21,265.13 and 45,780 is: 98,556.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.13 : 45,780 = 45,780 : x
  2. Step 2: Convert to fraction form
    21,265.13/45,780 = 45,780/x
  3. Step 3: Cross multiply
    21,265.13x = 45,780 × 45,780
  4. Step 4: Simplify right side
    21,265.13x = 2,095,808,400
  5. Step 5: Solve for x
    x = 2,095,808,400/21,265.13
  6. Step 6: Final answer
    x = 98,556.13

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.