Home / 84,789.10-117,009.41-52,976.45

Finding the Fourth Proportional to 84,789.10, 117,009.41 and 52,976.45

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Solution

The fourth proportional to 84,789.10, 117,009.41 and 52,976.45 is: 73,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,789.10 : 117,009.41 = 52,976.45 : x
  2. Step 2: Convert to fraction form
    84,789.10/117,009.41 = 52,976.45/x
  3. Step 3: Cross multiply
    84,789.10x = 117,009.41 × 52,976.45
  4. Step 4: Simplify right side
    84,789.10x = 6,198,742,308.47
  5. Step 5: Solve for x
    x = 6,198,742,308.47/84,789.10
  6. Step 6: Final answer
    x = 73,107.78

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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.