Home / 50,082.12-75,152.34-18,919.80

Finding the Fourth Proportional to 50,082.12, 75,152.34 and 18,919.80

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Solution

The fourth proportional to 50,082.12, 75,152.34 and 18,919.80 is: 28,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,082.12 : 75,152.34 = 18,919.80 : x
  2. Step 2: Convert to fraction form
    50,082.12/75,152.34 = 18,919.80/x
  3. Step 3: Cross multiply
    50,082.12x = 75,152.34 × 18,919.80
  4. Step 4: Simplify right side
    50,082.12x = 1,421,867,242.33
  5. Step 5: Solve for x
    x = 1,421,867,242.33/50,082.12
  6. Step 6: Final answer
    x = 28,390.72

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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.