Home / 36,102.72-54,136.32-12,725.76

Finding the Fourth Proportional to 36,102.72, 54,136.32 and 12,725.76

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Solution

The fourth proportional to 36,102.72, 54,136.32 and 12,725.76 is: 19,082.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,102.72 : 54,136.32 = 12,725.76 : x
  2. Step 2: Convert to fraction form
    36,102.72/54,136.32 = 12,725.76/x
  3. Step 3: Cross multiply
    36,102.72x = 54,136.32 × 12,725.76
  4. Step 4: Simplify right side
    36,102.72x = 688,925,815.60
  5. Step 5: Solve for x
    x = 688,925,815.60/36,102.72
  6. Step 6: Final answer
    x = 19,082.38

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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.