Home / 45,119.20-67,667.84-18,824.16

Finding the Fourth Proportional to 45,119.20, 67,667.84 and 18,824.16

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Solution

The fourth proportional to 45,119.20, 67,667.84 and 18,824.16 is: 28,231.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,119.20 : 67,667.84 = 18,824.16 : x
  2. Step 2: Convert to fraction form
    45,119.20/67,667.84 = 18,824.16/x
  3. Step 3: Cross multiply
    45,119.20x = 67,667.84 × 18,824.16
  4. Step 4: Simplify right side
    45,119.20x = 1,273,790,247.01
  5. Step 5: Solve for x
    x = 1,273,790,247.01/45,119.20
  6. Step 6: Final answer
    x = 28,231.67

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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.