Home / 66,478.44-91,701.66-43,821

Finding the Fourth Proportional to 66,478.44, 91,701.66 and 43,821

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Solution

The fourth proportional to 66,478.44, 91,701.66 and 43,821 is: 60,447.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,478.44 : 91,701.66 = 43,821 : x
  2. Step 2: Convert to fraction form
    66,478.44/91,701.66 = 43,821/x
  3. Step 3: Cross multiply
    66,478.44x = 91,701.66 × 43,821
  4. Step 4: Simplify right side
    66,478.44x = 4,018,458,442.86
  5. Step 5: Solve for x
    x = 4,018,458,442.86/66,478.44
  6. Step 6: Final answer
    x = 60,447.54

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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.