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Finding the Third Proportional to 18,779.34 and 40,565.81

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Solution

The third proportional to 18,779.34 and 40,565.81 is: 87,627.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779.34 : 40,565.81 = 40,565.81 : x
  2. Step 2: Convert to fraction form
    18,779.34/40,565.81 = 40,565.81/x
  3. Step 3: Cross multiply
    18,779.34x = 40,565.81 × 40,565.81
  4. Step 4: Simplify right side
    18,779.34x = 1,645,585,143.79
  5. Step 5: Solve for x
    x = 1,645,585,143.79/18,779.34
  6. Step 6: Final answer
    x = 87,627.40

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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.