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Finding the Fourth Proportional to 80,279.68, 110,784.70 and 43,980.84

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Solution

The fourth proportional to 80,279.68, 110,784.70 and 43,980.84 is: 60,692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,279.68 : 110,784.70 = 43,980.84 : x
  2. Step 2: Convert to fraction form
    80,279.68/110,784.70 = 43,980.84/x
  3. Step 3: Cross multiply
    80,279.68x = 110,784.70 × 43,980.84
  4. Step 4: Simplify right side
    80,279.68x = 4,872,404,165.15
  5. Step 5: Solve for x
    x = 4,872,404,165.15/80,279.68
  6. Step 6: Final answer
    x = 60,692.87

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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.