Home / 80,020.78-110,429.84-44,211.62

Finding the Fourth Proportional to 80,020.78, 110,429.84 and 44,211.62

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Solution

The fourth proportional to 80,020.78, 110,429.84 and 44,211.62 is: 61,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,020.78 : 110,429.84 = 44,211.62 : x
  2. Step 2: Convert to fraction form
    80,020.78/110,429.84 = 44,211.62/x
  3. Step 3: Cross multiply
    80,020.78x = 110,429.84 × 44,211.62
  4. Step 4: Simplify right side
    80,020.78x = 4,882,281,349.53
  5. Step 5: Solve for x
    x = 4,882,281,349.53/80,020.78
  6. Step 6: Final answer
    x = 61,012.67

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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.