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Finding the Fourth Proportional to 67,347.50, 101,025.30 and 20,600.78

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Solution

The fourth proportional to 67,347.50, 101,025.30 and 20,600.78 is: 30,902.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,347.50 : 101,025.30 = 20,600.78 : x
  2. Step 2: Convert to fraction form
    67,347.50/101,025.30 = 20,600.78/x
  3. Step 3: Cross multiply
    67,347.50x = 101,025.30 × 20,600.78
  4. Step 4: Simplify right side
    67,347.50x = 2,081,199,979.73
  5. Step 5: Solve for x
    x = 2,081,199,979.73/67,347.50
  6. Step 6: Final answer
    x = 30,902.41

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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.