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Finding the Fourth Proportional to 80,284.62, 120,440.46 and 29,686.62

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Solution

The fourth proportional to 80,284.62, 120,440.46 and 29,686.62 is: 44,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,284.62 : 120,440.46 = 29,686.62 : x
  2. Step 2: Convert to fraction form
    80,284.62/120,440.46 = 29,686.62/x
  3. Step 3: Cross multiply
    80,284.62x = 120,440.46 × 29,686.62
  4. Step 4: Simplify right side
    80,284.62x = 3,575,470,168.65
  5. Step 5: Solve for x
    x = 3,575,470,168.65/80,284.62
  6. Step 6: Final answer
    x = 44,534.93

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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.