Home / 67,431.02-101,115.06-20,028.68

Finding the Fourth Proportional to 67,431.02, 101,115.06 and 20,028.68

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Solution

The fourth proportional to 67,431.02, 101,115.06 and 20,028.68 is: 30,033.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,431.02 : 101,115.06 = 20,028.68 : x
  2. Step 2: Convert to fraction form
    67,431.02/101,115.06 = 20,028.68/x
  3. Step 3: Cross multiply
    67,431.02x = 101,115.06 × 20,028.68
  4. Step 4: Simplify right side
    67,431.02x = 2,025,201,179.92
  5. Step 5: Solve for x
    x = 2,025,201,179.92/67,431.02
  6. Step 6: Final answer
    x = 30,033.67

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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.