Home / 77,308.36-115,853.19-32,890.39

Finding the Fourth Proportional to 77,308.36, 115,853.19 and 32,890.39

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Solution

The fourth proportional to 77,308.36, 115,853.19 and 32,890.39 is: 49,289.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,308.36 : 115,853.19 = 32,890.39 : x
  2. Step 2: Convert to fraction form
    77,308.36/115,853.19 = 32,890.39/x
  3. Step 3: Cross multiply
    77,308.36x = 115,853.19 × 32,890.39
  4. Step 4: Simplify right side
    77,308.36x = 3,810,456,188.87
  5. Step 5: Solve for x
    x = 3,810,456,188.87/77,308.36
  6. Step 6: Final answer
    x = 49,289.06

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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.