Home / 81,019.38-121,571.74-41,576.49

Finding the Fourth Proportional to 81,019.38, 121,571.74 and 41,576.49

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Solution

The fourth proportional to 81,019.38, 121,571.74 and 41,576.49 is: 62,386.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,019.38 : 121,571.74 = 41,576.49 : x
  2. Step 2: Convert to fraction form
    81,019.38/121,571.74 = 41,576.49/x
  3. Step 3: Cross multiply
    81,019.38x = 121,571.74 × 41,576.49
  4. Step 4: Simplify right side
    81,019.38x = 5,054,526,698.26
  5. Step 5: Solve for x
    x = 5,054,526,698.26/81,019.38
  6. Step 6: Final answer
    x = 62,386.64

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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.