Home / 78,092.90-116,851.59-55,229.23

Finding the Fourth Proportional to 78,092.90, 116,851.59 and 55,229.23

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Solution

The fourth proportional to 78,092.90, 116,851.59 and 55,229.23 is: 82,640.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,092.90 : 116,851.59 = 55,229.23 : x
  2. Step 2: Convert to fraction form
    78,092.90/116,851.59 = 55,229.23/x
  3. Step 3: Cross multiply
    78,092.90x = 116,851.59 × 55,229.23
  4. Step 4: Simplify right side
    78,092.90x = 6,453,623,339.98
  5. Step 5: Solve for x
    x = 6,453,623,339.98/78,092.90
  6. Step 6: Final answer
    x = 82,640.33

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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.