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Finding the Fourth Proportional to 53,491.83, 80,180.83 and 20,197.72

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Solution

The fourth proportional to 53,491.83, 80,180.83 and 20,197.72 is: 30,275.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,491.83 : 80,180.83 = 20,197.72 : x
  2. Step 2: Convert to fraction form
    53,491.83/80,180.83 = 20,197.72/x
  3. Step 3: Cross multiply
    53,491.83x = 80,180.83 × 20,197.72
  4. Step 4: Simplify right side
    53,491.83x = 1,619,469,953.71
  5. Step 5: Solve for x
    x = 1,619,469,953.71/53,491.83
  6. Step 6: Final answer
    x = 30,275.09

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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.