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Finding the Fourth Proportional to 45,720, 63,101.68 and 26,857.12

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Solution

The fourth proportional to 45,720, 63,101.68 and 26,857.12 is: 37,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,720 : 63,101.68 = 26,857.12 : x
  2. Step 2: Convert to fraction form
    45,720/63,101.68 = 26,857.12/x
  3. Step 3: Cross multiply
    45,720x = 63,101.68 × 26,857.12
  4. Step 4: Simplify right side
    45,720x = 1,694,729,391.96
  5. Step 5: Solve for x
    x = 1,694,729,391.96/45,720
  6. Step 6: Final answer
    x = 37,067.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.