Home / 68,458.37-93,786.26-65,899.78

Finding the Fourth Proportional to 68,458.37, 93,786.26 and 65,899.78

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Solution

The fourth proportional to 68,458.37, 93,786.26 and 65,899.78 is: 90,281.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,458.37 : 93,786.26 = 65,899.78 : x
  2. Step 2: Convert to fraction form
    68,458.37/93,786.26 = 65,899.78/x
  3. Step 3: Cross multiply
    68,458.37x = 93,786.26 × 65,899.78
  4. Step 4: Simplify right side
    68,458.37x = 6,180,493,337.06
  5. Step 5: Solve for x
    x = 6,180,493,337.06/68,458.37
  6. Step 6: Final answer
    x = 90,281.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.