Home / 62,890.42-86,729.22-40,236.58

Finding the Fourth Proportional to 62,890.42, 86,729.22 and 40,236.58

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Solution

The fourth proportional to 62,890.42, 86,729.22 and 40,236.58 is: 55,488.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,890.42 : 86,729.22 = 40,236.58 : x
  2. Step 2: Convert to fraction form
    62,890.42/86,729.22 = 40,236.58/x
  3. Step 3: Cross multiply
    62,890.42x = 86,729.22 × 40,236.58
  4. Step 4: Simplify right side
    62,890.42x = 3,489,687,198.87
  5. Step 5: Solve for x
    x = 3,489,687,198.87/62,890.42
  6. Step 6: Final answer
    x = 55,488.37

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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.