Home / 84,768.12-116,979.12-47,042.64

Finding the Fourth Proportional to 84,768.12, 116,979.12 and 47,042.64

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Solution

The fourth proportional to 84,768.12, 116,979.12 and 47,042.64 is: 64,918.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,768.12 : 116,979.12 = 47,042.64 : x
  2. Step 2: Convert to fraction form
    84,768.12/116,979.12 = 47,042.64/x
  3. Step 3: Cross multiply
    84,768.12x = 116,979.12 × 47,042.64
  4. Step 4: Simplify right side
    84,768.12x = 5,503,006,629.68
  5. Step 5: Solve for x
    x = 5,503,006,629.68/84,768.12
  6. Step 6: Final answer
    x = 64,918.35

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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.