Home / 51,102.78-76,683.33-19,930.74

Finding the Fourth Proportional to 51,102.78, 76,683.33 and 19,930.74

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Solution

The fourth proportional to 51,102.78, 76,683.33 and 19,930.74 is: 29,907.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,102.78 : 76,683.33 = 19,930.74 : x
  2. Step 2: Convert to fraction form
    51,102.78/76,683.33 = 19,930.74/x
  3. Step 3: Cross multiply
    51,102.78x = 76,683.33 × 19,930.74
  4. Step 4: Simplify right side
    51,102.78x = 1,528,355,512.56
  5. Step 5: Solve for x
    x = 1,528,355,512.56/51,102.78
  6. Step 6: Final answer
    x = 29,907.48

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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.