Home / 40,279.62-55,388.70-34,965.12

Finding the Fourth Proportional to 40,279.62, 55,388.70 and 34,965.12

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Solution

The fourth proportional to 40,279.62, 55,388.70 and 34,965.12 is: 48,080.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,279.62 : 55,388.70 = 34,965.12 : x
  2. Step 2: Convert to fraction form
    40,279.62/55,388.70 = 34,965.12/x
  3. Step 3: Cross multiply
    40,279.62x = 55,388.70 × 34,965.12
  4. Step 4: Simplify right side
    40,279.62x = 1,936,672,542.14
  5. Step 5: Solve for x
    x = 1,936,672,542.14/40,279.62
  6. Step 6: Final answer
    x = 48,080.71

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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.