Home / 75,121.20-103,668.48-41,129.13

Finding the Fourth Proportional to 75,121.20, 103,668.48 and 41,129.13

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Solution

The fourth proportional to 75,121.20, 103,668.48 and 41,129.13 is: 56,758.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,121.20 : 103,668.48 = 41,129.13 : x
  2. Step 2: Convert to fraction form
    75,121.20/103,668.48 = 41,129.13/x
  3. Step 3: Cross multiply
    75,121.20x = 103,668.48 × 41,129.13
  4. Step 4: Simplify right side
    75,121.20x = 4,263,794,390.82
  5. Step 5: Solve for x
    x = 4,263,794,390.82/75,121.20
  6. Step 6: Final answer
    x = 56,758.87

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1.5x scale

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.