Home / 67,039.89-100,576.44-20,292.90

Finding the Fourth Proportional to 67,039.89, 100,576.44 and 20,292.90

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Solution

The fourth proportional to 67,039.89, 100,576.44 and 20,292.90 is: 30,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,039.89 : 100,576.44 = 20,292.90 : x
  2. Step 2: Convert to fraction form
    67,039.89/100,576.44 = 20,292.90/x
  3. Step 3: Cross multiply
    67,039.89x = 100,576.44 × 20,292.90
  4. Step 4: Simplify right side
    67,039.89x = 2,040,987,639.28
  5. Step 5: Solve for x
    x = 2,040,987,639.28/67,039.89
  6. Step 6: Final answer
    x = 30,444.38

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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.