Home / 78,546.36-117,871.38-41,636.28

Finding the Fourth Proportional to 78,546.36, 117,871.38 and 41,636.28

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Solution

The fourth proportional to 78,546.36, 117,871.38 and 41,636.28 is: 62,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,546.36 : 117,871.38 = 41,636.28 : x
  2. Step 2: Convert to fraction form
    78,546.36/117,871.38 = 41,636.28/x
  3. Step 3: Cross multiply
    78,546.36x = 117,871.38 × 41,636.28
  4. Step 4: Simplify right side
    78,546.36x = 4,907,725,781.67
  5. Step 5: Solve for x
    x = 4,907,725,781.67/78,546.36
  6. Step 6: Final answer
    x = 62,481.90

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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.