Home / 78,286.34-117,429.60-33,296.06

Finding the Fourth Proportional to 78,286.34, 117,429.60 and 33,296.06

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Solution

The fourth proportional to 78,286.34, 117,429.60 and 33,296.06 is: 49,944.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,286.34 : 117,429.60 = 33,296.06 : x
  2. Step 2: Convert to fraction form
    78,286.34/117,429.60 = 33,296.06/x
  3. Step 3: Cross multiply
    78,286.34x = 117,429.60 × 33,296.06
  4. Step 4: Simplify right side
    78,286.34x = 3,909,943,007.38
  5. Step 5: Solve for x
    x = 3,909,943,007.38/78,286.34
  6. Step 6: Final answer
    x = 49,944.13

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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.