Home / 86,120.25-118,846.56-48,394.50

Finding the Fourth Proportional to 86,120.25, 118,846.56 and 48,394.50

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Solution

The fourth proportional to 86,120.25, 118,846.56 and 48,394.50 is: 66,784.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,120.25 : 118,846.56 = 48,394.50 : x
  2. Step 2: Convert to fraction form
    86,120.25/118,846.56 = 48,394.50/x
  3. Step 3: Cross multiply
    86,120.25x = 118,846.56 × 48,394.50
  4. Step 4: Simplify right side
    86,120.25x = 5,751,519,847.92
  5. Step 5: Solve for x
    x = 5,751,519,847.92/86,120.25
  6. Step 6: Final answer
    x = 66,784.76

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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.