Home / 86,118.24-118,843.20-48,392.64

Finding the Fourth Proportional to 86,118.24, 118,843.20 and 48,392.64

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Solution

The fourth proportional to 86,118.24, 118,843.20 and 48,392.64 is: 66,781.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,118.24 : 118,843.20 = 48,392.64 : x
  2. Step 2: Convert to fraction form
    86,118.24/118,843.20 = 48,392.64/x
  3. Step 3: Cross multiply
    86,118.24x = 118,843.20 × 48,392.64
  4. Step 4: Simplify right side
    86,118.24x = 5,751,136,194.05
  5. Step 5: Solve for x
    x = 5,751,136,194.05/86,118.24
  6. Step 6: Final answer
    x = 66,781.86

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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.