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Finding the Third Proportional to 55,643.63 and 85,308.19

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Solution

The third proportional to 55,643.63 and 85,308.19 is: 130,787.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,643.63 : 85,308.19 = 85,308.19 : x
  2. Step 2: Convert to fraction form
    55,643.63/85,308.19 = 85,308.19/x
  3. Step 3: Cross multiply
    55,643.63x = 85,308.19 × 85,308.19
  4. Step 4: Simplify right side
    55,643.63x = 7,277,486,854.54
  5. Step 5: Solve for x
    x = 7,277,486,854.54/55,643.63
  6. Step 6: Final answer
    x = 130,787.43

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.