Home / 80,538.81-111,199.15-50,337.70

Finding the Fourth Proportional to 80,538.81, 111,199.15 and 50,337.70

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Solution

The fourth proportional to 80,538.81, 111,199.15 and 50,337.70 is: 69,500.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,538.81 : 111,199.15 = 50,337.70 : x
  2. Step 2: Convert to fraction form
    80,538.81/111,199.15 = 50,337.70/x
  3. Step 3: Cross multiply
    80,538.81x = 111,199.15 × 50,337.70
  4. Step 4: Simplify right side
    80,538.81x = 5,597,509,237.88
  5. Step 5: Solve for x
    x = 5,597,509,237.88/80,538.81
  6. Step 6: Final answer
    x = 69,500.77

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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.