Home / 81,170.37-112,015.68-45,361.89

Finding the Fourth Proportional to 81,170.37, 112,015.68 and 45,361.89

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Solution

The fourth proportional to 81,170.37, 112,015.68 and 45,361.89 is: 62,599.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,170.37 : 112,015.68 = 45,361.89 : x
  2. Step 2: Convert to fraction form
    81,170.37/112,015.68 = 45,361.89/x
  3. Step 3: Cross multiply
    81,170.37x = 112,015.68 × 45,361.89
  4. Step 4: Simplify right side
    81,170.37x = 5,081,242,954.44
  5. Step 5: Solve for x
    x = 5,081,242,954.44/81,170.37
  6. Step 6: Final answer
    x = 62,599.73

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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.