Home / 78,976.93-118,418.06-36,228.83

Finding the Fourth Proportional to 78,976.93, 118,418.06 and 36,228.83

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Solution

The fourth proportional to 78,976.93, 118,418.06 and 36,228.83 is: 54,321.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,976.93 : 118,418.06 = 36,228.83 : x
  2. Step 2: Convert to fraction form
    78,976.93/118,418.06 = 36,228.83/x
  3. Step 3: Cross multiply
    78,976.93x = 118,418.06 × 36,228.83
  4. Step 4: Simplify right side
    78,976.93x = 4,290,147,764.67
  5. Step 5: Solve for x
    x = 4,290,147,764.67/78,976.93
  6. Step 6: Final answer
    x = 54,321.53

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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.