Home / 79,651.22-119,378.14-40,219.61

Finding the Fourth Proportional to 79,651.22, 119,378.14 and 40,219.61

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Solution

The fourth proportional to 79,651.22, 119,378.14 and 40,219.61 is: 60,279.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,651.22 : 119,378.14 = 40,219.61 : x
  2. Step 2: Convert to fraction form
    79,651.22/119,378.14 = 40,219.61/x
  3. Step 3: Cross multiply
    79,651.22x = 119,378.14 × 40,219.61
  4. Step 4: Simplify right side
    79,651.22x = 4,801,341,535.89
  5. Step 5: Solve for x
    x = 4,801,341,535.89/79,651.22
  6. Step 6: Final answer
    x = 60,279.58

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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.