Home / 84,988.92-117,279.72-49,176.39

Finding the Fourth Proportional to 84,988.92, 117,279.72 and 49,176.39

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Solution

The fourth proportional to 84,988.92, 117,279.72 and 49,176.39 is: 67,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,988.92 : 117,279.72 = 49,176.39 : x
  2. Step 2: Convert to fraction form
    84,988.92/117,279.72 = 49,176.39/x
  3. Step 3: Cross multiply
    84,988.92x = 117,279.72 × 49,176.39
  4. Step 4: Simplify right side
    84,988.92x = 5,767,393,249.81
  5. Step 5: Solve for x
    x = 5,767,393,249.81/84,988.92
  6. Step 6: Final answer
    x = 67,860.53

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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.