Home / 78,200.41-117,282.63-46,619.39

Finding the Fourth Proportional to 78,200.41, 117,282.63 and 46,619.39

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Solution

The fourth proportional to 78,200.41, 117,282.63 and 46,619.39 is: 69,918.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,200.41 : 117,282.63 = 46,619.39 : x
  2. Step 2: Convert to fraction form
    78,200.41/117,282.63 = 46,619.39/x
  3. Step 3: Cross multiply
    78,200.41x = 117,282.63 × 46,619.39
  4. Step 4: Simplify right side
    78,200.41x = 5,467,644,668.20
  5. Step 5: Solve for x
    x = 5,467,644,668.20/78,200.41
  6. Step 6: Final answer
    x = 69,918.36

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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.