Home / 84,028.86-125,974.80-39,078.58

Finding the Fourth Proportional to 84,028.86, 125,974.80 and 39,078.58

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Solution

The fourth proportional to 84,028.86, 125,974.80 and 39,078.58 is: 58,586.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,028.86 : 125,974.80 = 39,078.58 : x
  2. Step 2: Convert to fraction form
    84,028.86/125,974.80 = 39,078.58/x
  3. Step 3: Cross multiply
    84,028.86x = 125,974.80 × 39,078.58
  4. Step 4: Simplify right side
    84,028.86x = 4,922,916,299.78
  5. Step 5: Solve for x
    x = 4,922,916,299.78/84,028.86
  6. Step 6: Final answer
    x = 58,586.02

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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.