Home / 84,604.05-126,800.78-54,539.01

Finding the Fourth Proportional to 84,604.05, 126,800.78 and 54,539.01

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Solution

The fourth proportional to 84,604.05, 126,800.78 and 54,539.01 is: 81,740.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,604.05 : 126,800.78 = 54,539.01 : x
  2. Step 2: Convert to fraction form
    84,604.05/126,800.78 = 54,539.01/x
  3. Step 3: Cross multiply
    84,604.05x = 126,800.78 × 54,539.01
  4. Step 4: Simplify right side
    84,604.05x = 6,915,588,735.73
  5. Step 5: Solve for x
    x = 6,915,588,735.73/84,604.05
  6. Step 6: Final answer
    x = 81,740.63

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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.