Home / 78,675.22-117,907.73-28,708.35

Finding the Fourth Proportional to 78,675.22, 117,907.73 and 28,708.35

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Solution

The fourth proportional to 78,675.22, 117,907.73 and 28,708.35 is: 43,024.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,675.22 : 117,907.73 = 28,708.35 : x
  2. Step 2: Convert to fraction form
    78,675.22/117,907.73 = 28,708.35/x
  3. Step 3: Cross multiply
    78,675.22x = 117,907.73 × 28,708.35
  4. Step 4: Simplify right side
    78,675.22x = 3,384,936,380.55
  5. Step 5: Solve for x
    x = 3,384,936,380.55/78,675.22
  6. Step 6: Final answer
    x = 43,024.17

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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.