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Finding the Third Proportional to 18,734.63 and 40,134.38

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Solution

The third proportional to 18,734.63 and 40,134.38 is: 85,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,734.63 : 40,134.38 = 40,134.38 : x
  2. Step 2: Convert to fraction form
    18,734.63/40,134.38 = 40,134.38/x
  3. Step 3: Cross multiply
    18,734.63x = 40,134.38 × 40,134.38
  4. Step 4: Simplify right side
    18,734.63x = 1,610,768,056.64
  5. Step 5: Solve for x
    x = 1,610,768,056.64/18,734.63
  6. Step 6: Final answer
    x = 85,978.13

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.