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Finding the Fourth Proportional to 83,504.73, 125,255.25 and 20,325.12

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Solution

The fourth proportional to 83,504.73, 125,255.25 and 20,325.12 is: 30,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,504.73 : 125,255.25 = 20,325.12 : x
  2. Step 2: Convert to fraction form
    83,504.73/125,255.25 = 20,325.12/x
  3. Step 3: Cross multiply
    83,504.73x = 125,255.25 × 20,325.12
  4. Step 4: Simplify right side
    83,504.73x = 2,545,827,986.88
  5. Step 5: Solve for x
    x = 2,545,827,986.88/83,504.73
  6. Step 6: Final answer
    x = 30,487.23

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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.