Home / 78,940.17-118,456.98-29,055.33

Finding the Fourth Proportional to 78,940.17, 118,456.98 and 29,055.33

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Solution

The fourth proportional to 78,940.17, 118,456.98 and 29,055.33 is: 43,600.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,940.17 : 118,456.98 = 29,055.33 : x
  2. Step 2: Convert to fraction form
    78,940.17/118,456.98 = 29,055.33/x
  3. Step 3: Cross multiply
    78,940.17x = 118,456.98 × 29,055.33
  4. Step 4: Simplify right side
    78,940.17x = 3,441,806,644.70
  5. Step 5: Solve for x
    x = 3,441,806,644.70/78,940.17
  6. Step 6: Final answer
    x = 43,600.19

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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.