Home / 77,329.20-115,926.30-29,976.60

Finding the Fourth Proportional to 77,329.20, 115,926.30 and 29,976.60

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Solution

The fourth proportional to 77,329.20, 115,926.30 and 29,976.60 is: 44,938.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,329.20 : 115,926.30 = 29,976.60 : x
  2. Step 2: Convert to fraction form
    77,329.20/115,926.30 = 29,976.60/x
  3. Step 3: Cross multiply
    77,329.20x = 115,926.30 × 29,976.60
  4. Step 4: Simplify right side
    77,329.20x = 3,475,076,324.58
  5. Step 5: Solve for x
    x = 3,475,076,324.58/77,329.20
  6. Step 6: Final answer
    x = 44,938.73

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1.5x scale

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.