Home / 45,123.78-67,683.57-11,843.10

Finding the Fourth Proportional to 45,123.78, 67,683.57 and 11,843.10

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Solution

The fourth proportional to 45,123.78, 67,683.57 and 11,843.10 is: 17,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,123.78 : 67,683.57 = 11,843.10 : x
  2. Step 2: Convert to fraction form
    45,123.78/67,683.57 = 11,843.10/x
  3. Step 3: Cross multiply
    45,123.78x = 67,683.57 × 11,843.10
  4. Step 4: Simplify right side
    45,123.78x = 801,583,287.87
  5. Step 5: Solve for x
    x = 801,583,287.87/45,123.78
  6. Step 6: Final answer
    x = 17,764.10

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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.