Home / 79,780.20-119,612.70-44,730.60

Finding the Fourth Proportional to 79,780.20, 119,612.70 and 44,730.60

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Solution

The fourth proportional to 79,780.20, 119,612.70 and 44,730.60 is: 67,063.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,780.20 : 119,612.70 = 44,730.60 : x
  2. Step 2: Convert to fraction form
    79,780.20/119,612.70 = 44,730.60/x
  3. Step 3: Cross multiply
    79,780.20x = 119,612.70 × 44,730.60
  4. Step 4: Simplify right side
    79,780.20x = 5,350,347,838.62
  5. Step 5: Solve for x
    x = 5,350,347,838.62/79,780.20
  6. Step 6: Final answer
    x = 67,063.61

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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.