Home / 40,119.18-55,355.31-25,786.50

Finding the Fourth Proportional to 40,119.18, 55,355.31 and 25,786.50

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Solution

The fourth proportional to 40,119.18, 55,355.31 and 25,786.50 is: 35,579.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,119.18 : 55,355.31 = 25,786.50 : x
  2. Step 2: Convert to fraction form
    40,119.18/55,355.31 = 25,786.50/x
  3. Step 3: Cross multiply
    40,119.18x = 55,355.31 × 25,786.50
  4. Step 4: Simplify right side
    40,119.18x = 1,427,419,701.32
  5. Step 5: Solve for x
    x = 1,427,419,701.32/40,119.18
  6. Step 6: Final answer
    x = 35,579.48

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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.