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Finding the Third Proportional to 54,696 and 85,688

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Solution

The third proportional to 54,696 and 85,688 is: 134,240.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,696 : 85,688 = 85,688 : x
  2. Step 2: Convert to fraction form
    54,696/85,688 = 85,688/x
  3. Step 3: Cross multiply
    54,696x = 85,688 × 85,688
  4. Step 4: Simplify right side
    54,696x = 7,342,433,344
  5. Step 5: Solve for x
    x = 7,342,433,344/54,696
  6. Step 6: Final answer
    x = 134,240.77

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.