Home / 45,245.22-67,890.46-20,303.10

Finding the Fourth Proportional to 45,245.22, 67,890.46 and 20,303.10

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Solution

The fourth proportional to 45,245.22, 67,890.46 and 20,303.10 is: 30,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,245.22 : 67,890.46 = 20,303.10 : x
  2. Step 2: Convert to fraction form
    45,245.22/67,890.46 = 20,303.10/x
  3. Step 3: Cross multiply
    45,245.22x = 67,890.46 × 20,303.10
  4. Step 4: Simplify right side
    45,245.22x = 1,378,386,798.43
  5. Step 5: Solve for x
    x = 1,378,386,798.43/45,245.22
  6. Step 6: Final answer
    x = 30,464.80

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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.