Home / 78,201.65-117,309.40-22,042.26

Finding the Fourth Proportional to 78,201.65, 117,309.40 and 22,042.26

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Solution

The fourth proportional to 78,201.65, 117,309.40 and 22,042.26 is: 33,065.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,201.65 : 117,309.40 = 22,042.26 : x
  2. Step 2: Convert to fraction form
    78,201.65/117,309.40 = 22,042.26/x
  3. Step 3: Cross multiply
    78,201.65x = 117,309.40 × 22,042.26
  4. Step 4: Simplify right side
    78,201.65x = 2,585,764,240.14
  5. Step 5: Solve for x
    x = 2,585,764,240.14/78,201.65
  6. Step 6: Final answer
    x = 33,065.34

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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.