Home / 80,255.81-120,279.09-44,715.70

Finding the Fourth Proportional to 80,255.81, 120,279.09 and 44,715.70

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Solution

The fourth proportional to 80,255.81, 120,279.09 and 44,715.70 is: 67,015.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,255.81 : 120,279.09 = 44,715.70 : x
  2. Step 2: Convert to fraction form
    80,255.81/120,279.09 = 44,715.70/x
  3. Step 3: Cross multiply
    80,255.81x = 120,279.09 × 44,715.70
  4. Step 4: Simplify right side
    80,255.81x = 5,378,363,704.71
  5. Step 5: Solve for x
    x = 5,378,363,704.71/80,255.81
  6. Step 6: Final answer
    x = 67,015.26

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1.5x scale

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.