Home / 67,317.16-100,993.92-20,568.76

Finding the Fourth Proportional to 67,317.16, 100,993.92 and 20,568.76

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Solution

The fourth proportional to 67,317.16, 100,993.92 and 20,568.76 is: 30,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,317.16 : 100,993.92 = 20,568.76 : x
  2. Step 2: Convert to fraction form
    67,317.16/100,993.92 = 20,568.76/x
  3. Step 3: Cross multiply
    67,317.16x = 100,993.92 × 20,568.76
  4. Step 4: Simplify right side
    67,317.16x = 2,077,319,701.94
  5. Step 5: Solve for x
    x = 2,077,319,701.94/67,317.16
  6. Step 6: Final answer
    x = 30,858.69

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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.