Home / 75,121.88-103,668.20-41,130.37

Finding the Fourth Proportional to 75,121.88, 103,668.20 and 41,130.37

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Solution

The fourth proportional to 75,121.88, 103,668.20 and 41,130.37 is: 56,759.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,121.88 : 103,668.20 = 41,130.37 : x
  2. Step 2: Convert to fraction form
    75,121.88/103,668.20 = 41,130.37/x
  3. Step 3: Cross multiply
    75,121.88x = 103,668.20 × 41,130.37
  4. Step 4: Simplify right side
    75,121.88x = 4,263,911,035.53
  5. Step 5: Solve for x
    x = 4,263,911,035.53/75,121.88
  6. Step 6: Final answer
    x = 56,759.91

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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.