Home / 71,998.65-99,356.22-40,166.73

Finding the Fourth Proportional to 71,998.65, 99,356.22 and 40,166.73

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Solution

The fourth proportional to 71,998.65, 99,356.22 and 40,166.73 is: 55,429.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,998.65 : 99,356.22 = 40,166.73 : x
  2. Step 2: Convert to fraction form
    71,998.65/99,356.22 = 40,166.73/x
  3. Step 3: Cross multiply
    71,998.65x = 99,356.22 × 40,166.73
  4. Step 4: Simplify right side
    71,998.65x = 3,990,814,462.56
  5. Step 5: Solve for x
    x = 3,990,814,462.56/71,998.65
  6. Step 6: Final answer
    x = 55,429.02

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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.