Home / 78,231.69-117,354.44-22,072.29

Finding the Fourth Proportional to 78,231.69, 117,354.44 and 22,072.29

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Solution

The fourth proportional to 78,231.69, 117,354.44 and 22,072.29 is: 33,110.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,231.69 : 117,354.44 = 22,072.29 : x
  2. Step 2: Convert to fraction form
    78,231.69/117,354.44 = 22,072.29/x
  3. Step 3: Cross multiply
    78,231.69x = 117,354.44 × 22,072.29
  4. Step 4: Simplify right side
    78,231.69x = 2,590,281,122.11
  5. Step 5: Solve for x
    x = 2,590,281,122.11/78,231.69
  6. Step 6: Final answer
    x = 33,110.38

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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.