Home / 78,403.44-117,488.52-43,353.12

Finding the Fourth Proportional to 78,403.44, 117,488.52 and 43,353.12

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Solution

The fourth proportional to 78,403.44, 117,488.52 and 43,353.12 is: 64,965.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,403.44 : 117,488.52 = 43,353.12 : x
  2. Step 2: Convert to fraction form
    78,403.44/117,488.52 = 43,353.12/x
  3. Step 3: Cross multiply
    78,403.44x = 117,488.52 × 43,353.12
  4. Step 4: Simplify right side
    78,403.44x = 5,093,493,906.18
  5. Step 5: Solve for x
    x = 5,093,493,906.18/78,403.44
  6. Step 6: Final answer
    x = 64,965.18

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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.