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Finding the Fourth Proportional to 80,484.58, 120,652.95 and 27,857.26

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Solution

The fourth proportional to 80,484.58, 120,652.95 and 27,857.26 is: 41,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,484.58 : 120,652.95 = 27,857.26 : x
  2. Step 2: Convert to fraction form
    80,484.58/120,652.95 = 27,857.26/x
  3. Step 3: Cross multiply
    80,484.58x = 120,652.95 × 27,857.26
  4. Step 4: Simplify right side
    80,484.58x = 3,361,060,400.75
  5. Step 5: Solve for x
    x = 3,361,060,400.75/80,484.58
  6. Step 6: Final answer
    x = 41,760.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.