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Finding the Third Proportional to 28,137.38 and 42,920.44

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Solution

The third proportional to 28,137.38 and 42,920.44 is: 65,470.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.38 : 42,920.44 = 42,920.44 : x
  2. Step 2: Convert to fraction form
    28,137.38/42,920.44 = 42,920.44/x
  3. Step 3: Cross multiply
    28,137.38x = 42,920.44 × 42,920.44
  4. Step 4: Simplify right side
    28,137.38x = 1,842,163,955.19
  5. Step 5: Solve for x
    x = 1,842,163,955.19/28,137.38
  6. Step 6: Final answer
    x = 65,470.36

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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.