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Finding the Fourth Proportional to 79,797.98, 110,126.85 and 45,812

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Solution

The fourth proportional to 79,797.98, 110,126.85 and 45,812 is: 63,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,797.98 : 110,126.85 = 45,812 : x
  2. Step 2: Convert to fraction form
    79,797.98/110,126.85 = 45,812/x
  3. Step 3: Cross multiply
    79,797.98x = 110,126.85 × 45,812
  4. Step 4: Simplify right side
    79,797.98x = 5,045,131,252.20
  5. Step 5: Solve for x
    x = 5,045,131,252.20/79,797.98
  6. Step 6: Final answer
    x = 63,223.80

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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.