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Finding the Fourth Proportional to 128,591.46, 192,793.73 and 53,733.03

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Solution

The fourth proportional to 128,591.46, 192,793.73 and 53,733.03 is: 80,560.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,591.46 : 192,793.73 = 53,733.03 : x
  2. Step 2: Convert to fraction form
    128,591.46/192,793.73 = 53,733.03/x
  3. Step 3: Cross multiply
    128,591.46x = 192,793.73 × 53,733.03
  4. Step 4: Simplify right side
    128,591.46x = 10,359,391,009.24
  5. Step 5: Solve for x
    x = 10,359,391,009.24/128,591.46
  6. Step 6: Final answer
    x = 80,560.49

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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.