Home / 80,619.80-120,929.99-24,460.39

Finding the Fourth Proportional to 80,619.80, 120,929.99 and 24,460.39

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Solution

The fourth proportional to 80,619.80, 120,929.99 and 24,460.39 is: 36,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,619.80 : 120,929.99 = 24,460.39 : x
  2. Step 2: Convert to fraction form
    80,619.80/120,929.99 = 24,460.39/x
  3. Step 3: Cross multiply
    80,619.80x = 120,929.99 × 24,460.39
  4. Step 4: Simplify right side
    80,619.80x = 2,957,994,718.10
  5. Step 5: Solve for x
    x = 2,957,994,718.10/80,619.80
  6. Step 6: Final answer
    x = 36,690.67

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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.