Home / 84,990.03-127,485-40,481.84

Finding the Fourth Proportional to 84,990.03, 127,485 and 40,481.84

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Solution

The fourth proportional to 84,990.03, 127,485 and 40,481.84 is: 60,722.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,990.03 : 127,485 = 40,481.84 : x
  2. Step 2: Convert to fraction form
    84,990.03/127,485 = 40,481.84/x
  3. Step 3: Cross multiply
    84,990.03x = 127,485 × 40,481.84
  4. Step 4: Simplify right side
    84,990.03x = 5,160,826,734.98
  5. Step 5: Solve for x
    x = 5,160,826,734.98/84,990.03
  6. Step 6: Final answer
    x = 60,722.73

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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.