Home / 81,676.38-122,436.81-26,233.50

Finding the Fourth Proportional to 81,676.38, 122,436.81 and 26,233.50

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Solution

The fourth proportional to 81,676.38, 122,436.81 and 26,233.50 is: 39,325.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,676.38 : 122,436.81 = 26,233.50 : x
  2. Step 2: Convert to fraction form
    81,676.38/122,436.81 = 26,233.50/x
  3. Step 3: Cross multiply
    81,676.38x = 122,436.81 × 26,233.50
  4. Step 4: Simplify right side
    81,676.38x = 3,211,946,055.14
  5. Step 5: Solve for x
    x = 3,211,946,055.14/81,676.38
  6. Step 6: Final answer
    x = 39,325.27

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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.