Home / 84,721.14-116,929.19-47,007.54

Finding the Fourth Proportional to 84,721.14, 116,929.19 and 47,007.54

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Solution

The fourth proportional to 84,721.14, 116,929.19 and 47,007.54 is: 64,878.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,721.14 : 116,929.19 = 47,007.54 : x
  2. Step 2: Convert to fraction form
    84,721.14/116,929.19 = 47,007.54/x
  3. Step 3: Cross multiply
    84,721.14x = 116,929.19 × 47,007.54
  4. Step 4: Simplify right side
    84,721.14x = 5,496,553,576.09
  5. Step 5: Solve for x
    x = 5,496,553,576.09/84,721.14
  6. Step 6: Final answer
    x = 64,878.18

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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.