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Finding the Third Proportional to 28,220.25 and 61,687.50

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Solution

The third proportional to 28,220.25 and 61,687.50 is: 134,844.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,220.25 : 61,687.50 = 61,687.50 : x
  2. Step 2: Convert to fraction form
    28,220.25/61,687.50 = 61,687.50/x
  3. Step 3: Cross multiply
    28,220.25x = 61,687.50 × 61,687.50
  4. Step 4: Simplify right side
    28,220.25x = 3,805,347,656.25
  5. Step 5: Solve for x
    x = 3,805,347,656.25/28,220.25
  6. Step 6: Final answer
    x = 134,844.58

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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.