Home / 84,181.80-126,321.30-31,596.60

Finding the Fourth Proportional to 84,181.80, 126,321.30 and 31,596.60

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Solution

The fourth proportional to 84,181.80, 126,321.30 and 31,596.60 is: 47,413.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,181.80 : 126,321.30 = 31,596.60 : x
  2. Step 2: Convert to fraction form
    84,181.80/126,321.30 = 31,596.60/x
  3. Step 3: Cross multiply
    84,181.80x = 126,321.30 × 31,596.60
  4. Step 4: Simplify right side
    84,181.80x = 3,991,323,587.58
  5. Step 5: Solve for x
    x = 3,991,323,587.58/84,181.80
  6. Step 6: Final answer
    x = 47,413.14

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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.