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Finding the Fourth Proportional to 67,000.43, 100,500.54 and 52,220.43

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Solution

The fourth proportional to 67,000.43, 100,500.54 and 52,220.43 is: 78,330.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,000.43 : 100,500.54 = 52,220.43 : x
  2. Step 2: Convert to fraction form
    67,000.43/100,500.54 = 52,220.43/x
  3. Step 3: Cross multiply
    67,000.43x = 100,500.54 × 52,220.43
  4. Step 4: Simplify right side
    67,000.43x = 5,248,181,152.93
  5. Step 5: Solve for x
    x = 5,248,181,152.93/67,000.43
  6. Step 6: Final answer
    x = 78,330.56

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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.