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Finding the Third Proportional to 27,779.50 and 39,696

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Solution

The third proportional to 27,779.50 and 39,696 is: 56,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,779.50 : 39,696 = 39,696 : x
  2. Step 2: Convert to fraction form
    27,779.50/39,696 = 39,696/x
  3. Step 3: Cross multiply
    27,779.50x = 39,696 × 39,696
  4. Step 4: Simplify right side
    27,779.50x = 1,575,772,416
  5. Step 5: Solve for x
    x = 1,575,772,416/27,779.50
  6. Step 6: Final answer
    x = 56,724.29

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.