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Finding the Fourth Proportional to 80,843.94, 110,756.71 and 77,813.71

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Solution

The fourth proportional to 80,843.94, 110,756.71 and 77,813.71 is: 106,605.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,843.94 : 110,756.71 = 77,813.71 : x
  2. Step 2: Convert to fraction form
    80,843.94/110,756.71 = 77,813.71/x
  3. Step 3: Cross multiply
    80,843.94x = 110,756.71 × 77,813.71
  4. Step 4: Simplify right side
    80,843.94x = 8,618,389,958.71
  5. Step 5: Solve for x
    x = 8,618,389,958.71/80,843.94
  6. Step 6: Final answer
    x = 106,605.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.