Home / 80,069.16-119,928.78-40,558.44

Finding the Fourth Proportional to 80,069.16, 119,928.78 and 40,558.44

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Solution

The fourth proportional to 80,069.16, 119,928.78 and 40,558.44 is: 60,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,069.16 : 119,928.78 = 40,558.44 : x
  2. Step 2: Convert to fraction form
    80,069.16/119,928.78 = 40,558.44/x
  3. Step 3: Cross multiply
    80,069.16x = 119,928.78 × 40,558.44
  4. Step 4: Simplify right side
    80,069.16x = 4,864,124,227.90
  5. Step 5: Solve for x
    x = 4,864,124,227.90/80,069.16
  6. Step 6: Final answer
    x = 60,749.04

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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.