Home / 81,349.56-121,991.46-25,176.48

Finding the Fourth Proportional to 81,349.56, 121,991.46 and 25,176.48

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Solution

The fourth proportional to 81,349.56, 121,991.46 and 25,176.48 is: 37,754.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,349.56 : 121,991.46 = 25,176.48 : x
  2. Step 2: Convert to fraction form
    81,349.56/121,991.46 = 25,176.48/x
  3. Step 3: Cross multiply
    81,349.56x = 121,991.46 × 25,176.48
  4. Step 4: Simplify right side
    81,349.56x = 3,071,315,552.86
  5. Step 5: Solve for x
    x = 3,071,315,552.86/81,349.56
  6. Step 6: Final answer
    x = 37,754.54

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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.