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Finding the Fourth Proportional to 67,256.40, 100,884.60 and 18,008.40

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Solution

The fourth proportional to 67,256.40, 100,884.60 and 18,008.40 is: 27,012.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,256.40 : 100,884.60 = 18,008.40 : x
  2. Step 2: Convert to fraction form
    67,256.40/100,884.60 = 18,008.40/x
  3. Step 3: Cross multiply
    67,256.40x = 100,884.60 × 18,008.40
  4. Step 4: Simplify right side
    67,256.40x = 1,816,770,230.64
  5. Step 5: Solve for x
    x = 1,816,770,230.64/67,256.40
  6. Step 6: Final answer
    x = 27,012.60

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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.