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Finding the Fourth Proportional to 67,660.91, 101,463.62 and 20,259.30

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Solution

The fourth proportional to 67,660.91, 101,463.62 and 20,259.30 is: 30,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,660.91 : 101,463.62 = 20,259.30 : x
  2. Step 2: Convert to fraction form
    67,660.91/101,463.62 = 20,259.30/x
  3. Step 3: Cross multiply
    67,660.91x = 101,463.62 × 20,259.30
  4. Step 4: Simplify right side
    67,660.91x = 2,055,582,069.03
  5. Step 5: Solve for x
    x = 2,055,582,069.03/67,660.91
  6. Step 6: Final answer
    x = 30,380.65

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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.