Home / 86,120.44-118,835.58-49,828.12

Finding the Fourth Proportional to 86,120.44, 118,835.58 and 49,828.12

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Solution

The fourth proportional to 86,120.44, 118,835.58 and 49,828.12 is: 68,756.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,120.44 : 118,835.58 = 49,828.12 : x
  2. Step 2: Convert to fraction form
    86,120.44/118,835.58 = 49,828.12/x
  3. Step 3: Cross multiply
    86,120.44x = 118,835.58 × 49,828.12
  4. Step 4: Simplify right side
    86,120.44x = 5,921,353,540.51
  5. Step 5: Solve for x
    x = 5,921,353,540.51/86,120.44
  6. Step 6: Final answer
    x = 68,756.66

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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.