Home / 81,317.48-121,982.39-25,163.27

Finding the Fourth Proportional to 81,317.48, 121,982.39 and 25,163.27

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Solution

The fourth proportional to 81,317.48, 121,982.39 and 25,163.27 is: 37,746.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,317.48 : 121,982.39 = 25,163.27 : x
  2. Step 2: Convert to fraction form
    81,317.48/121,982.39 = 25,163.27/x
  3. Step 3: Cross multiply
    81,317.48x = 121,982.39 × 25,163.27
  4. Step 4: Simplify right side
    81,317.48x = 3,069,475,908.58
  5. Step 5: Solve for x
    x = 3,069,475,908.58/81,317.48
  6. Step 6: Final answer
    x = 37,746.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.