Home / 90,619.83-135,954.14-38,015.19

Finding the Fourth Proportional to 90,619.83, 135,954.14 and 38,015.19

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Solution

The fourth proportional to 90,619.83, 135,954.14 and 38,015.19 is: 57,033.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,619.83 : 135,954.14 = 38,015.19 : x
  2. Step 2: Convert to fraction form
    90,619.83/135,954.14 = 38,015.19/x
  3. Step 3: Cross multiply
    90,619.83x = 135,954.14 × 38,015.19
  4. Step 4: Simplify right side
    90,619.83x = 5,168,322,273.31
  5. Step 5: Solve for x
    x = 5,168,322,273.31/90,619.83
  6. Step 6: Final answer
    x = 57,033.02

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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.