Home / 212,391.27-318,546.41-62,638.47

Finding the Fourth Proportional to 212,391.27, 318,546.41 and 62,638.47

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Solution

The fourth proportional to 212,391.27, 318,546.41 and 62,638.47 is: 93,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,391.27 : 318,546.41 = 62,638.47 : x
  2. Step 2: Convert to fraction form
    212,391.27/318,546.41 = 62,638.47/x
  3. Step 3: Cross multiply
    212,391.27x = 318,546.41 × 62,638.47
  4. Step 4: Simplify right side
    212,391.27x = 19,953,259,433.20
  5. Step 5: Solve for x
    x = 19,953,259,433.20/212,391.27
  6. Step 6: Final answer
    x = 93,945.76

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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.