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Finding the Third Proportional to 72,629.25 and 99,015.75

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Solution

The third proportional to 72,629.25 and 99,015.75 is: 134,988.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,629.25 : 99,015.75 = 99,015.75 : x
  2. Step 2: Convert to fraction form
    72,629.25/99,015.75 = 99,015.75/x
  3. Step 3: Cross multiply
    72,629.25x = 99,015.75 × 99,015.75
  4. Step 4: Simplify right side
    72,629.25x = 9,804,118,748.06
  5. Step 5: Solve for x
    x = 9,804,118,748.06/72,629.25
  6. Step 6: Final answer
    x = 134,988.57

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.