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Finding the Fourth Proportional to 57,468.92, 86,175.61 and 20,028.11

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Solution

The fourth proportional to 57,468.92, 86,175.61 and 20,028.11 is: 30,032.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,468.92 : 86,175.61 = 20,028.11 : x
  2. Step 2: Convert to fraction form
    57,468.92/86,175.61 = 20,028.11/x
  3. Step 3: Cross multiply
    57,468.92x = 86,175.61 × 20,028.11
  4. Step 4: Simplify right side
    57,468.92x = 1,725,934,065.38
  5. Step 5: Solve for x
    x = 1,725,934,065.38/57,468.92
  6. Step 6: Final answer
    x = 30,032.48

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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.