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Finding the Fourth Proportional to 57,007.76, 85,511.64 and 15,453.68

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Solution

The fourth proportional to 57,007.76, 85,511.64 and 15,453.68 is: 23,180.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,007.76 : 85,511.64 = 15,453.68 : x
  2. Step 2: Convert to fraction form
    57,007.76/85,511.64 = 15,453.68/x
  3. Step 3: Cross multiply
    57,007.76x = 85,511.64 × 15,453.68
  4. Step 4: Simplify right side
    57,007.76x = 1,321,469,520.84
  5. Step 5: Solve for x
    x = 1,321,469,520.84/57,007.76
  6. Step 6: Final answer
    x = 23,180.52

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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.