Home / 80,596.98-111,278.07-72,072.54

Finding the Fourth Proportional to 80,596.98, 111,278.07 and 72,072.54

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Solution

The fourth proportional to 80,596.98, 111,278.07 and 72,072.54 is: 99,508.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,596.98 : 111,278.07 = 72,072.54 : x
  2. Step 2: Convert to fraction form
    80,596.98/111,278.07 = 72,072.54/x
  3. Step 3: Cross multiply
    80,596.98x = 111,278.07 × 72,072.54
  4. Step 4: Simplify right side
    80,596.98x = 8,020,093,151.20
  5. Step 5: Solve for x
    x = 8,020,093,151.20/80,596.98
  6. Step 6: Final answer
    x = 99,508.61

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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.