Home / 51,195.90-76,788.40-17,916.60

Finding the Fourth Proportional to 51,195.90, 76,788.40 and 17,916.60

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Solution

The fourth proportional to 51,195.90, 76,788.40 and 17,916.60 is: 26,872.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,195.90 : 76,788.40 = 17,916.60 : x
  2. Step 2: Convert to fraction form
    51,195.90/76,788.40 = 17,916.60/x
  3. Step 3: Cross multiply
    51,195.90x = 76,788.40 × 17,916.60
  4. Step 4: Simplify right side
    51,195.90x = 1,375,787,047.44
  5. Step 5: Solve for x
    x = 1,375,787,047.44/51,195.90
  6. Step 6: Final answer
    x = 26,872.99

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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.