Home / 67,065.12-100,580.94-20,317.32

Finding the Fourth Proportional to 67,065.12, 100,580.94 and 20,317.32

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Solution

The fourth proportional to 67,065.12, 100,580.94 and 20,317.32 is: 30,470.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,065.12 : 100,580.94 = 20,317.32 : x
  2. Step 2: Convert to fraction form
    67,065.12/100,580.94 = 20,317.32/x
  3. Step 3: Cross multiply
    67,065.12x = 100,580.94 × 20,317.32
  4. Step 4: Simplify right side
    67,065.12x = 2,043,535,143.88
  5. Step 5: Solve for x
    x = 2,043,535,143.88/67,065.12
  6. Step 6: Final answer
    x = 30,470.91

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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.