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Finding the Fourth Proportional to 57,652.40, 86,517.07 and 20,212.44

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Solution

The fourth proportional to 57,652.40, 86,517.07 and 20,212.44 is: 30,332.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,652.40 : 86,517.07 = 20,212.44 : x
  2. Step 2: Convert to fraction form
    57,652.40/86,517.07 = 20,212.44/x
  3. Step 3: Cross multiply
    57,652.40x = 86,517.07 × 20,212.44
  4. Step 4: Simplify right side
    57,652.40x = 1,748,721,035.82
  5. Step 5: Solve for x
    x = 1,748,721,035.82/57,652.40
  6. Step 6: Final answer
    x = 30,332.15

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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.