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Finding the Third Proportional to 20,130.75 and 43,719.19

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Solution

The third proportional to 20,130.75 and 43,719.19 is: 94,947.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.75 : 43,719.19 = 43,719.19 : x
  2. Step 2: Convert to fraction form
    20,130.75/43,719.19 = 43,719.19/x
  3. Step 3: Cross multiply
    20,130.75x = 43,719.19 × 43,719.19
  4. Step 4: Simplify right side
    20,130.75x = 1,911,367,355.66
  5. Step 5: Solve for x
    x = 1,911,367,355.66/20,130.75
  6. Step 6: Final answer
    x = 94,947.65

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.