Home / 84,279.78-116,312.22-48,481.02

Finding the Fourth Proportional to 84,279.78, 116,312.22 and 48,481.02

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Solution

The fourth proportional to 84,279.78, 116,312.22 and 48,481.02 is: 66,907.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,279.78 : 116,312.22 = 48,481.02 : x
  2. Step 2: Convert to fraction form
    84,279.78/116,312.22 = 48,481.02/x
  3. Step 3: Cross multiply
    84,279.78x = 116,312.22 × 48,481.02
  4. Step 4: Simplify right side
    84,279.78x = 5,638,935,064.06
  5. Step 5: Solve for x
    x = 5,638,935,064.06/84,279.78
  6. Step 6: Final answer
    x = 66,907.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.