Home / 51,809.63-77,665.23-20,196.54

Finding the Fourth Proportional to 51,809.63, 77,665.23 and 20,196.54

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Solution

The fourth proportional to 51,809.63, 77,665.23 and 20,196.54 is: 30,275.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,809.63 : 77,665.23 = 20,196.54 : x
  2. Step 2: Convert to fraction form
    51,809.63/77,665.23 = 20,196.54/x
  3. Step 3: Cross multiply
    51,809.63x = 77,665.23 × 20,196.54
  4. Step 4: Simplify right side
    51,809.63x = 1,568,568,924.30
  5. Step 5: Solve for x
    x = 1,568,568,924.30/51,809.63
  6. Step 6: Final answer
    x = 30,275.63

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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.