Home / 81,738.86-122,592.87-25,570.53

Finding the Fourth Proportional to 81,738.86, 122,592.87 and 25,570.53

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Solution

The fourth proportional to 81,738.86, 122,592.87 and 25,570.53 is: 38,350.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,738.86 : 122,592.87 = 25,570.53 : x
  2. Step 2: Convert to fraction form
    81,738.86/122,592.87 = 25,570.53/x
  3. Step 3: Cross multiply
    81,738.86x = 122,592.87 × 25,570.53
  4. Step 4: Simplify right side
    81,738.86x = 3,134,764,660.12
  5. Step 5: Solve for x
    x = 3,134,764,660.12/81,738.86
  6. Step 6: Final answer
    x = 38,350.97

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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.