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Finding the Third Proportional to 28,920.50 and 43,745.50

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Solution

The third proportional to 28,920.50 and 43,745.50 is: 66,169.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920.50 : 43,745.50 = 43,745.50 : x
  2. Step 2: Convert to fraction form
    28,920.50/43,745.50 = 43,745.50/x
  3. Step 3: Cross multiply
    28,920.50x = 43,745.50 × 43,745.50
  4. Step 4: Simplify right side
    28,920.50x = 1,913,668,770.25
  5. Step 5: Solve for x
    x = 1,913,668,770.25/28,920.50
  6. Step 6: Final answer
    x = 66,169.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.