Home / 84,029.40-115,956.36-55,786.32

Finding the Fourth Proportional to 84,029.40, 115,956.36 and 55,786.32

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Solution

The fourth proportional to 84,029.40, 115,956.36 and 55,786.32 is: 76,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,029.40 : 115,956.36 = 55,786.32 : x
  2. Step 2: Convert to fraction form
    84,029.40/115,956.36 = 55,786.32/x
  3. Step 3: Cross multiply
    84,029.40x = 115,956.36 × 55,786.32
  4. Step 4: Simplify right side
    84,029.40x = 6,468,778,605.00
  5. Step 5: Solve for x
    x = 6,468,778,605.00/84,029.40
  6. Step 6: Final answer
    x = 76,982.33

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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.