Home / 36,709.42-55,081.77-20,068.78

Finding the Fourth Proportional to 36,709.42, 55,081.77 and 20,068.78

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Solution

The fourth proportional to 36,709.42, 55,081.77 and 20,068.78 is: 30,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,709.42 : 55,081.77 = 20,068.78 : x
  2. Step 2: Convert to fraction form
    36,709.42/55,081.77 = 20,068.78/x
  3. Step 3: Cross multiply
    36,709.42x = 55,081.77 × 20,068.78
  4. Step 4: Simplify right side
    36,709.42x = 1,105,423,924.14
  5. Step 5: Solve for x
    x = 1,105,423,924.14/36,709.42
  6. Step 6: Final answer
    x = 30,112.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.