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Finding the Third Proportional to 28,615.50 and 43,777.13

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Solution

The third proportional to 28,615.50 and 43,777.13 is: 66,971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.50 : 43,777.13 = 43,777.13 : x
  2. Step 2: Convert to fraction form
    28,615.50/43,777.13 = 43,777.13/x
  3. Step 3: Cross multiply
    28,615.50x = 43,777.13 × 43,777.13
  4. Step 4: Simplify right side
    28,615.50x = 1,916,436,673.27
  5. Step 5: Solve for x
    x = 1,916,436,673.27/28,615.50
  6. Step 6: Final answer
    x = 66,971.98

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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.