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Finding the Fourth Proportional to 79,375.44, 109,521 and 45,822

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Solution

The fourth proportional to 79,375.44, 109,521 and 45,822 is: 63,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,375.44 : 109,521 = 45,822 : x
  2. Step 2: Convert to fraction form
    79,375.44/109,521 = 45,822/x
  3. Step 3: Cross multiply
    79,375.44x = 109,521 × 45,822
  4. Step 4: Simplify right side
    79,375.44x = 5,018,471,262
  5. Step 5: Solve for x
    x = 5,018,471,262/79,375.44
  6. Step 6: Final answer
    x = 63,224.48

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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.