Home / 79,647.18-109,914.39-43,840.86

Finding the Fourth Proportional to 79,647.18, 109,914.39 and 43,840.86

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Solution

The fourth proportional to 79,647.18, 109,914.39 and 43,840.86 is: 60,501.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,647.18 : 109,914.39 = 43,840.86 : x
  2. Step 2: Convert to fraction form
    79,647.18/109,914.39 = 43,840.86/x
  3. Step 3: Cross multiply
    79,647.18x = 109,914.39 × 43,840.86
  4. Step 4: Simplify right side
    79,647.18x = 4,818,741,383.98
  5. Step 5: Solve for x
    x = 4,818,741,383.98/79,647.18
  6. Step 6: Final answer
    x = 60,501.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.