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Finding the Fourth Proportional to 45,178.44, 67,707.18 and 25,449

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Solution

The fourth proportional to 45,178.44, 67,707.18 and 25,449 is: 38,139.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,178.44 : 67,707.18 = 25,449 : x
  2. Step 2: Convert to fraction form
    45,178.44/67,707.18 = 25,449/x
  3. Step 3: Cross multiply
    45,178.44x = 67,707.18 × 25,449
  4. Step 4: Simplify right side
    45,178.44x = 1,723,080,023.82
  5. Step 5: Solve for x
    x = 1,723,080,023.82/45,178.44
  6. Step 6: Final answer
    x = 38,139.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.