Home / 75,115.62-103,664.52-43,286.55

Finding the Fourth Proportional to 75,115.62, 103,664.52 and 43,286.55

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Solution

The fourth proportional to 75,115.62, 103,664.52 and 43,286.55 is: 59,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,115.62 : 103,664.52 = 43,286.55 : x
  2. Step 2: Convert to fraction form
    75,115.62/103,664.52 = 43,286.55/x
  3. Step 3: Cross multiply
    75,115.62x = 103,664.52 × 43,286.55
  4. Step 4: Simplify right side
    75,115.62x = 4,487,279,428.21
  5. Step 5: Solve for x
    x = 4,487,279,428.21/75,115.62
  6. Step 6: Final answer
    x = 59,738.30

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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.