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Finding the Third Proportional to 28,240.31 and 61,129.88

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Solution

The third proportional to 28,240.31 and 61,129.88 is: 132,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.31 : 61,129.88 = 61,129.88 : x
  2. Step 2: Convert to fraction form
    28,240.31/61,129.88 = 61,129.88/x
  3. Step 3: Cross multiply
    28,240.31x = 61,129.88 × 61,129.88
  4. Step 4: Simplify right side
    28,240.31x = 3,736,861,617.52
  5. Step 5: Solve for x
    x = 3,736,861,617.52/28,240.31
  6. Step 6: Final answer
    x = 132,323.66

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.