Home / 75,128.22-103,678.17-41,136.14

Finding the Fourth Proportional to 75,128.22, 103,678.17 and 41,136.14

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Solution

The fourth proportional to 75,128.22, 103,678.17 and 41,136.14 is: 56,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,128.22 : 103,678.17 = 41,136.14 : x
  2. Step 2: Convert to fraction form
    75,128.22/103,678.17 = 41,136.14/x
  3. Step 3: Cross multiply
    75,128.22x = 103,678.17 × 41,136.14
  4. Step 4: Simplify right side
    75,128.22x = 4,264,919,716.06
  5. Step 5: Solve for x
    x = 4,264,919,716.06/75,128.22
  6. Step 6: Final answer
    x = 56,768.54

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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.