Home / 80,515.62-111,093.66-48,683.84

Finding the Fourth Proportional to 80,515.62, 111,093.66 and 48,683.84

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Solution

The fourth proportional to 80,515.62, 111,093.66 and 48,683.84 is: 67,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,515.62 : 111,093.66 = 48,683.84 : x
  2. Step 2: Convert to fraction form
    80,515.62/111,093.66 = 48,683.84/x
  3. Step 3: Cross multiply
    80,515.62x = 111,093.66 × 48,683.84
  4. Step 4: Simplify right side
    80,515.62x = 5,408,465,412.99
  5. Step 5: Solve for x
    x = 5,408,465,412.99/80,515.62
  6. Step 6: Final answer
    x = 67,172.87

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1.5x scale

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.