Home / 67,322.07-100,983.11-20,574.54

Finding the Fourth Proportional to 67,322.07, 100,983.11 and 20,574.54

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Solution

The fourth proportional to 67,322.07, 100,983.11 and 20,574.54 is: 30,861.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,322.07 : 100,983.11 = 20,574.54 : x
  2. Step 2: Convert to fraction form
    67,322.07/100,983.11 = 20,574.54/x
  3. Step 3: Cross multiply
    67,322.07x = 100,983.11 × 20,574.54
  4. Step 4: Simplify right side
    67,322.07x = 2,077,680,933.15
  5. Step 5: Solve for x
    x = 2,077,680,933.15/67,322.07
  6. Step 6: Final answer
    x = 30,861.81

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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.