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Finding the Third Proportional to 18,985.78 and 43,953.61

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Solution

The third proportional to 18,985.78 and 43,953.61 is: 101,756.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.78 : 43,953.61 = 43,953.61 : x
  2. Step 2: Convert to fraction form
    18,985.78/43,953.61 = 43,953.61/x
  3. Step 3: Cross multiply
    18,985.78x = 43,953.61 × 43,953.61
  4. Step 4: Simplify right side
    18,985.78x = 1,931,919,777.09
  5. Step 5: Solve for x
    x = 1,931,919,777.09/18,985.78
  6. Step 6: Final answer
    x = 101,756.14

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.