Home / 80,529.12-111,184.65-50,359.86

Finding the Fourth Proportional to 80,529.12, 111,184.65 and 50,359.86

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Solution

The fourth proportional to 80,529.12, 111,184.65 and 50,359.86 is: 69,530.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,529.12 : 111,184.65 = 50,359.86 : x
  2. Step 2: Convert to fraction form
    80,529.12/111,184.65 = 50,359.86/x
  3. Step 3: Cross multiply
    80,529.12x = 111,184.65 × 50,359.86
  4. Step 4: Simplify right side
    80,529.12x = 5,599,243,408.15
  5. Step 5: Solve for x
    x = 5,599,243,408.15/80,529.12
  6. Step 6: Final answer
    x = 69,530.67

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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.