Home / 78,200.82-117,283.24-46,619.80

Finding the Fourth Proportional to 78,200.82, 117,283.24 and 46,619.80

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Solution

The fourth proportional to 78,200.82, 117,283.24 and 46,619.80 is: 69,918.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,200.82 : 117,283.24 = 46,619.80 : x
  2. Step 2: Convert to fraction form
    78,200.82/117,283.24 = 46,619.80/x
  3. Step 3: Cross multiply
    78,200.82x = 117,283.24 × 46,619.80
  4. Step 4: Simplify right side
    78,200.82x = 5,467,720,782.39
  5. Step 5: Solve for x
    x = 5,467,720,782.39/78,200.82
  6. Step 6: Final answer
    x = 69,918.97

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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.