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Finding the Fourth Proportional to 80,182.60, 120,273.90 and 38,633.80

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Solution

The fourth proportional to 80,182.60, 120,273.90 and 38,633.80 is: 57,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,182.60 : 120,273.90 = 38,633.80 : x
  2. Step 2: Convert to fraction form
    80,182.60/120,273.90 = 38,633.80/x
  3. Step 3: Cross multiply
    80,182.60x = 120,273.90 × 38,633.80
  4. Step 4: Simplify right side
    80,182.60x = 4,646,637,797.82
  5. Step 5: Solve for x
    x = 4,646,637,797.82/80,182.60
  6. Step 6: Final answer
    x = 57,950.70

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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.