Home / 84,853.79-117,091.40-49,046.12

Finding the Fourth Proportional to 84,853.79, 117,091.40 and 49,046.12

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Solution

The fourth proportional to 84,853.79, 117,091.40 and 49,046.12 is: 67,679.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,853.79 : 117,091.40 = 49,046.12 : x
  2. Step 2: Convert to fraction form
    84,853.79/117,091.40 = 49,046.12/x
  3. Step 3: Cross multiply
    84,853.79x = 117,091.40 × 49,046.12
  4. Step 4: Simplify right side
    84,853.79x = 5,742,878,024.68
  5. Step 5: Solve for x
    x = 5,742,878,024.68/84,853.79
  6. Step 6: Final answer
    x = 67,679.69

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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.