Home / 78,652.56-117,977.58-28,732.44

Finding the Fourth Proportional to 78,652.56, 117,977.58 and 28,732.44

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Solution

The fourth proportional to 78,652.56, 117,977.58 and 28,732.44 is: 43,098.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,652.56 : 117,977.58 = 28,732.44 : x
  2. Step 2: Convert to fraction form
    78,652.56/117,977.58 = 28,732.44/x
  3. Step 3: Cross multiply
    78,652.56x = 117,977.58 × 28,732.44
  4. Step 4: Simplify right side
    78,652.56x = 3,389,783,738.70
  5. Step 5: Solve for x
    x = 3,389,783,738.70/78,652.56
  6. Step 6: Final answer
    x = 43,098.20

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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.