Home / 75,127.75-103,676.25-41,136.21

Finding the Fourth Proportional to 75,127.75, 103,676.25 and 41,136.21

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Solution

The fourth proportional to 75,127.75, 103,676.25 and 41,136.21 is: 56,767.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,127.75 : 103,676.25 = 41,136.21 : x
  2. Step 2: Convert to fraction form
    75,127.75/103,676.25 = 41,136.21/x
  3. Step 3: Cross multiply
    75,127.75x = 103,676.25 × 41,136.21
  4. Step 4: Simplify right side
    75,127.75x = 4,264,847,992.01
  5. Step 5: Solve for x
    x = 4,264,847,992.01/75,127.75
  6. Step 6: Final answer
    x = 56,767.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.