Home / 55,141.26-76,131.36-49,162.56

Finding the Fourth Proportional to 55,141.26, 76,131.36 and 49,162.56

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Solution

The fourth proportional to 55,141.26, 76,131.36 and 49,162.56 is: 67,876.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,141.26 : 76,131.36 = 49,162.56 : x
  2. Step 2: Convert to fraction form
    55,141.26/76,131.36 = 49,162.56/x
  3. Step 3: Cross multiply
    55,141.26x = 76,131.36 × 49,162.56
  4. Step 4: Simplify right side
    55,141.26x = 3,742,812,553.88
  5. Step 5: Solve for x
    x = 3,742,812,553.88/55,141.26
  6. Step 6: Final answer
    x = 67,876.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.