Home / 52,082.20-78,123.39-18,825.73

Finding the Fourth Proportional to 52,082.20, 78,123.39 and 18,825.73

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Solution

The fourth proportional to 52,082.20, 78,123.39 and 18,825.73 is: 28,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,082.20 : 78,123.39 = 18,825.73 : x
  2. Step 2: Convert to fraction form
    52,082.20/78,123.39 = 18,825.73/x
  3. Step 3: Cross multiply
    52,082.20x = 78,123.39 × 18,825.73
  4. Step 4: Simplify right side
    52,082.20x = 1,470,729,846.82
  5. Step 5: Solve for x
    x = 1,470,729,846.82/52,082.20
  6. Step 6: Final answer
    x = 28,238.63

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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.