Home / 36,123.64-54,172.01-12,424.53

Finding the Fourth Proportional to 36,123.64, 54,172.01 and 12,424.53

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Solution

The fourth proportional to 36,123.64, 54,172.01 and 12,424.53 is: 18,632.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,123.64 : 54,172.01 = 12,424.53 : x
  2. Step 2: Convert to fraction form
    36,123.64/54,172.01 = 12,424.53/x
  3. Step 3: Cross multiply
    36,123.64x = 54,172.01 × 12,424.53
  4. Step 4: Simplify right side
    36,123.64x = 673,061,747.87
  5. Step 5: Solve for x
    x = 673,061,747.87/36,123.64
  6. Step 6: Final answer
    x = 18,632.17

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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.