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Finding the Fourth Proportional to 86,086, 118,795.44 and 47,847.88

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Solution

The fourth proportional to 86,086, 118,795.44 and 47,847.88 is: 66,028.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,086 : 118,795.44 = 47,847.88 : x
  2. Step 2: Convert to fraction form
    86,086/118,795.44 = 47,847.88/x
  3. Step 3: Cross multiply
    86,086x = 118,795.44 × 47,847.88
  4. Step 4: Simplify right side
    86,086x = 5,684,109,957.67
  5. Step 5: Solve for x
    x = 5,684,109,957.67/86,086
  6. Step 6: Final answer
    x = 66,028.27

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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.