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Finding the Fourth Proportional to 80,290.10, 110,800.28 and 43,991.58

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Solution

The fourth proportional to 80,290.10, 110,800.28 and 43,991.58 is: 60,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,290.10 : 110,800.28 = 43,991.58 : x
  2. Step 2: Convert to fraction form
    80,290.10/110,800.28 = 43,991.58/x
  3. Step 3: Cross multiply
    80,290.10x = 110,800.28 × 43,991.58
  4. Step 4: Simplify right side
    80,290.10x = 4,874,279,381.64
  5. Step 5: Solve for x
    x = 4,874,279,381.64/80,290.10
  6. Step 6: Final answer
    x = 60,708.35

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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.