Home / 78,946.26-108,942.60-43,137.50

Finding the Fourth Proportional to 78,946.26, 108,942.60 and 43,137.50

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Solution

The fourth proportional to 78,946.26, 108,942.60 and 43,137.50 is: 59,527.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,946.26 : 108,942.60 = 43,137.50 : x
  2. Step 2: Convert to fraction form
    78,946.26/108,942.60 = 43,137.50/x
  3. Step 3: Cross multiply
    78,946.26x = 108,942.60 × 43,137.50
  4. Step 4: Simplify right side
    78,946.26x = 4,699,511,407.50
  5. Step 5: Solve for x
    x = 4,699,511,407.50/78,946.26
  6. Step 6: Final answer
    x = 59,527.98

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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.