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Finding the Fourth Proportional to 67,737.74, 101,620.73 and 20,350.91

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Solution

The fourth proportional to 67,737.74, 101,620.73 and 20,350.91 is: 30,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,737.74 : 101,620.73 = 20,350.91 : x
  2. Step 2: Convert to fraction form
    67,737.74/101,620.73 = 20,350.91/x
  3. Step 3: Cross multiply
    67,737.74x = 101,620.73 × 20,350.91
  4. Step 4: Simplify right side
    67,737.74x = 2,068,073,720.51
  5. Step 5: Solve for x
    x = 2,068,073,720.51/67,737.74
  6. Step 6: Final answer
    x = 30,530.60

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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.