Home / 85,072.01-117,406.14-49,262.64

Finding the Fourth Proportional to 85,072.01, 117,406.14 and 49,262.64

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Solution

The fourth proportional to 85,072.01, 117,406.14 and 49,262.64 is: 67,986.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,072.01 : 117,406.14 = 49,262.64 : x
  2. Step 2: Convert to fraction form
    85,072.01/117,406.14 = 49,262.64/x
  3. Step 3: Cross multiply
    85,072.01x = 117,406.14 × 49,262.64
  4. Step 4: Simplify right side
    85,072.01x = 5,783,736,408.61
  5. Step 5: Solve for x
    x = 5,783,736,408.61/85,072.01
  6. Step 6: Final answer
    x = 67,986.37

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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.