Home / 80,555.60-111,172.04-48,725.84

Finding the Fourth Proportional to 80,555.60, 111,172.04 and 48,725.84

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Solution

The fourth proportional to 80,555.60, 111,172.04 and 48,725.84 is: 67,244.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,555.60 : 111,172.04 = 48,725.84 : x
  2. Step 2: Convert to fraction form
    80,555.60/111,172.04 = 48,725.84/x
  3. Step 3: Cross multiply
    80,555.60x = 111,172.04 × 48,725.84
  4. Step 4: Simplify right side
    80,555.60x = 5,416,951,033.51
  5. Step 5: Solve for x
    x = 5,416,951,033.51/80,555.60
  6. Step 6: Final answer
    x = 67,244.87

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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.