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Finding the Fourth Proportional to 79,983.36, 110,375.04 and 45,991.20

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Solution

The fourth proportional to 79,983.36, 110,375.04 and 45,991.20 is: 63,466.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,983.36 : 110,375.04 = 45,991.20 : x
  2. Step 2: Convert to fraction form
    79,983.36/110,375.04 = 45,991.20/x
  3. Step 3: Cross multiply
    79,983.36x = 110,375.04 × 45,991.20
  4. Step 4: Simplify right side
    79,983.36x = 5,076,280,539.65
  5. Step 5: Solve for x
    x = 5,076,280,539.65/79,983.36
  6. Step 6: Final answer
    x = 63,466.71

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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.