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Finding the Fourth Proportional to 79,970.20, 119,897.70 and 44,920.60

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Solution

The fourth proportional to 79,970.20, 119,897.70 and 44,920.60 is: 67,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,970.20 : 119,897.70 = 44,920.60 : x
  2. Step 2: Convert to fraction form
    79,970.20/119,897.70 = 44,920.60/x
  3. Step 3: Cross multiply
    79,970.20x = 119,897.70 × 44,920.60
  4. Step 4: Simplify right side
    79,970.20x = 5,385,876,622.62
  5. Step 5: Solve for x
    x = 5,385,876,622.62/79,970.20
  6. Step 6: Final answer
    x = 67,348.55

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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.