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Finding the Fourth Proportional to 83,471.93, 125,206.08 and 20,292.39

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Solution

The fourth proportional to 83,471.93, 125,206.08 and 20,292.39 is: 30,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,471.93 : 125,206.08 = 20,292.39 : x
  2. Step 2: Convert to fraction form
    83,471.93/125,206.08 = 20,292.39/x
  3. Step 3: Cross multiply
    83,471.93x = 125,206.08 × 20,292.39
  4. Step 4: Simplify right side
    83,471.93x = 2,540,730,529.63
  5. Step 5: Solve for x
    x = 2,540,730,529.63/83,471.93
  6. Step 6: Final answer
    x = 30,438.14

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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.