Home / 81,400.36-122,119.50-25,237.54

Finding the Fourth Proportional to 81,400.36, 122,119.50 and 25,237.54

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Solution

The fourth proportional to 81,400.36, 122,119.50 and 25,237.54 is: 37,862.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,400.36 : 122,119.50 = 25,237.54 : x
  2. Step 2: Convert to fraction form
    81,400.36/122,119.50 = 25,237.54/x
  3. Step 3: Cross multiply
    81,400.36x = 122,119.50 × 25,237.54
  4. Step 4: Simplify right side
    81,400.36x = 3,081,995,766.03
  5. Step 5: Solve for x
    x = 3,081,995,766.03/81,400.36
  6. Step 6: Final answer
    x = 37,862.19

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1.5x scale

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.