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Finding the Fourth Proportional to 67,006.40, 100,509.60 and 17,086.40

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Solution

The fourth proportional to 67,006.40, 100,509.60 and 17,086.40 is: 25,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,006.40 : 100,509.60 = 17,086.40 : x
  2. Step 2: Convert to fraction form
    67,006.40/100,509.60 = 17,086.40/x
  3. Step 3: Cross multiply
    67,006.40x = 100,509.60 × 17,086.40
  4. Step 4: Simplify right side
    67,006.40x = 1,717,347,229.44
  5. Step 5: Solve for x
    x = 1,717,347,229.44/67,006.40
  6. Step 6: Final answer
    x = 25,629.60

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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.