Home / 45,238.52-67,889.46-18,949.88

Finding the Fourth Proportional to 45,238.52, 67,889.46 and 18,949.88

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Solution

The fourth proportional to 45,238.52, 67,889.46 and 18,949.88 is: 28,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,238.52 : 67,889.46 = 18,949.88 : x
  2. Step 2: Convert to fraction form
    45,238.52/67,889.46 = 18,949.88/x
  3. Step 3: Cross multiply
    45,238.52x = 67,889.46 × 18,949.88
  4. Step 4: Simplify right side
    45,238.52x = 1,286,497,120.26
  5. Step 5: Solve for x
    x = 1,286,497,120.26/45,238.52
  6. Step 6: Final answer
    x = 28,438.09

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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.