Home / 84,828.78-117,063.36-47,103.12

Finding the Fourth Proportional to 84,828.78, 117,063.36 and 47,103.12

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Solution

The fourth proportional to 84,828.78, 117,063.36 and 47,103.12 is: 65,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,828.78 : 117,063.36 = 47,103.12 : x
  2. Step 2: Convert to fraction form
    84,828.78/117,063.36 = 47,103.12/x
  3. Step 3: Cross multiply
    84,828.78x = 117,063.36 × 47,103.12
  4. Step 4: Simplify right side
    84,828.78x = 5,514,049,493.68
  5. Step 5: Solve for x
    x = 5,514,049,493.68/84,828.78
  6. Step 6: Final answer
    x = 65,002.11

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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.