Home / 45,787.05-68,709.78-19,491.75

Finding the Fourth Proportional to 45,787.05, 68,709.78 and 19,491.75

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Solution

The fourth proportional to 45,787.05, 68,709.78 and 19,491.75 is: 29,250.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,787.05 : 68,709.78 = 19,491.75 : x
  2. Step 2: Convert to fraction form
    45,787.05/68,709.78 = 19,491.75/x
  3. Step 3: Cross multiply
    45,787.05x = 68,709.78 × 19,491.75
  4. Step 4: Simplify right side
    45,787.05x = 1,339,273,854.32
  5. Step 5: Solve for x
    x = 1,339,273,854.32/45,787.05
  6. Step 6: Final answer
    x = 29,250.06

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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.