Home / 51,161.78-76,749.59-17,874.02

Finding the Fourth Proportional to 51,161.78, 76,749.59 and 17,874.02

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Solution

The fourth proportional to 51,161.78, 76,749.59 and 17,874.02 is: 26,813.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,161.78 : 76,749.59 = 17,874.02 : x
  2. Step 2: Convert to fraction form
    51,161.78/76,749.59 = 17,874.02/x
  3. Step 3: Cross multiply
    51,161.78x = 76,749.59 × 17,874.02
  4. Step 4: Simplify right side
    51,161.78x = 1,371,823,943.21
  5. Step 5: Solve for x
    x = 1,371,823,943.21/51,161.78
  6. Step 6: Final answer
    x = 26,813.45

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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.