Home / 45,660.84-68,491.26-12,379.56

Finding the Fourth Proportional to 45,660.84, 68,491.26 and 12,379.56

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Solution

The fourth proportional to 45,660.84, 68,491.26 and 12,379.56 is: 18,569.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,660.84 : 68,491.26 = 12,379.56 : x
  2. Step 2: Convert to fraction form
    45,660.84/68,491.26 = 12,379.56/x
  3. Step 3: Cross multiply
    45,660.84x = 68,491.26 × 12,379.56
  4. Step 4: Simplify right side
    45,660.84x = 847,891,662.65
  5. Step 5: Solve for x
    x = 847,891,662.65/45,660.84
  6. Step 6: Final answer
    x = 18,569.34

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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.