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Finding the Fourth Proportional to 80,559.24, 110,777.40 and 69,930.24

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Solution

The fourth proportional to 80,559.24, 110,777.40 and 69,930.24 is: 96,161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,559.24 : 110,777.40 = 69,930.24 : x
  2. Step 2: Convert to fraction form
    80,559.24/110,777.40 = 69,930.24/x
  3. Step 3: Cross multiply
    80,559.24x = 110,777.40 × 69,930.24
  4. Step 4: Simplify right side
    80,559.24x = 7,746,690,168.58
  5. Step 5: Solve for x
    x = 7,746,690,168.58/80,559.24
  6. Step 6: Final answer
    x = 96,161.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.