Home / 80,853.68-110,769.94-77,823.43

Finding the Fourth Proportional to 80,853.68, 110,769.94 and 77,823.43

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Solution

The fourth proportional to 80,853.68, 110,769.94 and 77,823.43 is: 106,618.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,853.68 : 110,769.94 = 77,823.43 : x
  2. Step 2: Convert to fraction form
    80,853.68/110,769.94 = 77,823.43/x
  3. Step 3: Cross multiply
    80,853.68x = 110,769.94 × 77,823.43
  4. Step 4: Simplify right side
    80,853.68x = 8,620,495,728.73
  5. Step 5: Solve for x
    x = 8,620,495,728.73/80,853.68
  6. Step 6: Final answer
    x = 106,618.48

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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.