Home / 78,283.54-117,291.09-52,589.72

Finding the Fourth Proportional to 78,283.54, 117,291.09 and 52,589.72

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Solution

The fourth proportional to 78,283.54, 117,291.09 and 52,589.72 is: 78,794.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,283.54 : 117,291.09 = 52,589.72 : x
  2. Step 2: Convert to fraction form
    78,283.54/117,291.09 = 52,589.72/x
  3. Step 3: Cross multiply
    78,283.54x = 117,291.09 × 52,589.72
  4. Step 4: Simplify right side
    78,283.54x = 6,168,305,581.59
  5. Step 5: Solve for x
    x = 6,168,305,581.59/78,283.54
  6. Step 6: Final answer
    x = 78,794.41

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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.