Home / 54,170.05-81,188.52-30,427.68

Finding the Fourth Proportional to 54,170.05, 81,188.52 and 30,427.68

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Solution

The fourth proportional to 54,170.05, 81,188.52 and 30,427.68 is: 45,604.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,170.05 : 81,188.52 = 30,427.68 : x
  2. Step 2: Convert to fraction form
    54,170.05/81,188.52 = 30,427.68/x
  3. Step 3: Cross multiply
    54,170.05x = 81,188.52 × 30,427.68
  4. Step 4: Simplify right side
    54,170.05x = 2,470,378,306.23
  5. Step 5: Solve for x
    x = 2,470,378,306.23/54,170.05
  6. Step 6: Final answer
    x = 45,604.14

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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.