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Finding the Fourth Proportional to 67,004.20, 100,506.30 and 60,005.80

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Solution

The fourth proportional to 67,004.20, 100,506.30 and 60,005.80 is: 90,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,004.20 : 100,506.30 = 60,005.80 : x
  2. Step 2: Convert to fraction form
    67,004.20/100,506.30 = 60,005.80/x
  3. Step 3: Cross multiply
    67,004.20x = 100,506.30 × 60,005.80
  4. Step 4: Simplify right side
    67,004.20x = 6,030,960,936.54
  5. Step 5: Solve for x
    x = 6,030,960,936.54/67,004.20
  6. Step 6: Final answer
    x = 90,008.70

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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.