Home / 54,128.13-81,190.37-19,066.88

Finding the Fourth Proportional to 54,128.13, 81,190.37 and 19,066.88

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Solution

The fourth proportional to 54,128.13, 81,190.37 and 19,066.88 is: 28,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128.13 : 81,190.37 = 19,066.88 : x
  2. Step 2: Convert to fraction form
    54,128.13/81,190.37 = 19,066.88/x
  3. Step 3: Cross multiply
    54,128.13x = 81,190.37 × 19,066.88
  4. Step 4: Simplify right side
    54,128.13x = 1,548,046,540.66
  5. Step 5: Solve for x
    x = 1,548,046,540.66/54,128.13
  6. Step 6: Final answer
    x = 28,599.67

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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.