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Finding the Third Proportional to 28,777.50 and 62,889

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Solution

The third proportional to 28,777.50 and 62,889 is: 137,434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.50 : 62,889 = 62,889 : x
  2. Step 2: Convert to fraction form
    28,777.50/62,889 = 62,889/x
  3. Step 3: Cross multiply
    28,777.50x = 62,889 × 62,889
  4. Step 4: Simplify right side
    28,777.50x = 3,955,026,321
  5. Step 5: Solve for x
    x = 3,955,026,321/28,777.50
  6. Step 6: Final answer
    x = 137,434.67

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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.