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Finding the Fourth Proportional to 79,805.57, 110,131.11 and 43,506.90

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Solution

The fourth proportional to 79,805.57, 110,131.11 and 43,506.90 is: 60,039.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,805.57 : 110,131.11 = 43,506.90 : x
  2. Step 2: Convert to fraction form
    79,805.57/110,131.11 = 43,506.90/x
  3. Step 3: Cross multiply
    79,805.57x = 110,131.11 × 43,506.90
  4. Step 4: Simplify right side
    79,805.57x = 4,791,463,189.66
  5. Step 5: Solve for x
    x = 4,791,463,189.66/79,805.57
  6. Step 6: Final answer
    x = 60,039.21

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1.5x scale

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.