Home / 74,586.21-111,879.36-51,141.57

Finding the Fourth Proportional to 74,586.21, 111,879.36 and 51,141.57

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Solution

The fourth proportional to 74,586.21, 111,879.36 and 51,141.57 is: 76,712.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,586.21 : 111,879.36 = 51,141.57 : x
  2. Step 2: Convert to fraction form
    74,586.21/111,879.36 = 51,141.57/x
  3. Step 3: Cross multiply
    74,586.21x = 111,879.36 × 51,141.57
  4. Step 4: Simplify right side
    74,586.21x = 5,721,686,121.00
  5. Step 5: Solve for x
    x = 5,721,686,121.00/74,586.21
  6. Step 6: Final answer
    x = 76,712.39

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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.