Home / 86,905.37-119,867.44-79,758.31

Finding the Fourth Proportional to 86,905.37, 119,867.44 and 79,758.31

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Solution

The fourth proportional to 86,905.37, 119,867.44 and 79,758.31 is: 110,009.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,905.37 : 119,867.44 = 79,758.31 : x
  2. Step 2: Convert to fraction form
    86,905.37/119,867.44 = 79,758.31/x
  3. Step 3: Cross multiply
    86,905.37x = 119,867.44 × 79,758.31
  4. Step 4: Simplify right side
    86,905.37x = 9,560,424,438.43
  5. Step 5: Solve for x
    x = 9,560,424,438.43/86,905.37
  6. Step 6: Final answer
    x = 110,009.59

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1.5x scale

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.