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Finding the Third Proportional to 35,889 and 78,603

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Solution

The third proportional to 35,889 and 78,603 is: 172,153.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,889 : 78,603 = 78,603 : x
  2. Step 2: Convert to fraction form
    35,889/78,603 = 78,603/x
  3. Step 3: Cross multiply
    35,889x = 78,603 × 78,603
  4. Step 4: Simplify right side
    35,889x = 6,178,431,609
  5. Step 5: Solve for x
    x = 6,178,431,609/35,889
  6. Step 6: Final answer
    x = 172,153.91

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.