Home / 45,579.89-68,369.82-12,299.94

Finding the Fourth Proportional to 45,579.89, 68,369.82 and 12,299.94

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Solution

The fourth proportional to 45,579.89, 68,369.82 and 12,299.94 is: 18,449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,579.89 : 68,369.82 = 12,299.94 : x
  2. Step 2: Convert to fraction form
    45,579.89/68,369.82 = 12,299.94/x
  3. Step 3: Cross multiply
    45,579.89x = 68,369.82 × 12,299.94
  4. Step 4: Simplify right side
    45,579.89x = 840,944,683.81
  5. Step 5: Solve for x
    x = 840,944,683.81/45,579.89
  6. Step 6: Final answer
    x = 18,449.91

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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.