Home / 55,180.14-76,143.30-30,975.54

Finding the Fourth Proportional to 55,180.14, 76,143.30 and 30,975.54

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Solution

The fourth proportional to 55,180.14, 76,143.30 and 30,975.54 is: 42,743.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,180.14 : 76,143.30 = 30,975.54 : x
  2. Step 2: Convert to fraction form
    55,180.14/76,143.30 = 30,975.54/x
  3. Step 3: Cross multiply
    55,180.14x = 76,143.30 × 30,975.54
  4. Step 4: Simplify right side
    55,180.14x = 2,358,579,834.88
  5. Step 5: Solve for x
    x = 2,358,579,834.88/55,180.14
  6. Step 6: Final answer
    x = 42,743.27

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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.