Home / 84,546.43-126,821.70-28,388.37

Finding the Fourth Proportional to 84,546.43, 126,821.70 and 28,388.37

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Solution

The fourth proportional to 84,546.43, 126,821.70 and 28,388.37 is: 42,583.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,546.43 : 126,821.70 = 28,388.37 : x
  2. Step 2: Convert to fraction form
    84,546.43/126,821.70 = 28,388.37/x
  3. Step 3: Cross multiply
    84,546.43x = 126,821.70 × 28,388.37
  4. Step 4: Simplify right side
    84,546.43x = 3,600,261,819.21
  5. Step 5: Solve for x
    x = 3,600,261,819.21/84,546.43
  6. Step 6: Final answer
    x = 42,583.25

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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.