Home / 84,028.86-125,974.81-39,078.57

Finding the Fourth Proportional to 84,028.86, 125,974.81 and 39,078.57

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Solution

The fourth proportional to 84,028.86, 125,974.81 and 39,078.57 is: 58,586.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,028.86 : 125,974.81 = 39,078.57 : x
  2. Step 2: Convert to fraction form
    84,028.86/125,974.81 = 39,078.57/x
  3. Step 3: Cross multiply
    84,028.86x = 125,974.81 × 39,078.57
  4. Step 4: Simplify right side
    84,028.86x = 4,922,915,430.82
  5. Step 5: Solve for x
    x = 4,922,915,430.82/84,028.86
  6. Step 6: Final answer
    x = 58,586.01

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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.