Home / 67,401.42-101,084.78-20,005.28

Finding the Fourth Proportional to 67,401.42, 101,084.78 and 20,005.28

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Solution

The fourth proportional to 67,401.42, 101,084.78 and 20,005.28 is: 30,002.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,401.42 : 101,084.78 = 20,005.28 : x
  2. Step 2: Convert to fraction form
    67,401.42/101,084.78 = 20,005.28/x
  3. Step 3: Cross multiply
    67,401.42x = 101,084.78 × 20,005.28
  4. Step 4: Simplify right side
    67,401.42x = 2,022,228,722.19
  5. Step 5: Solve for x
    x = 2,022,228,722.19/67,401.42
  6. Step 6: Final answer
    x = 30,002.76

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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.