Home / 72,249.34-99,704.24-40,418.77

Finding the Fourth Proportional to 72,249.34, 99,704.24 and 40,418.77

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Solution

The fourth proportional to 72,249.34, 99,704.24 and 40,418.77 is: 55,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,249.34 : 99,704.24 = 40,418.77 : x
  2. Step 2: Convert to fraction form
    72,249.34/99,704.24 = 40,418.77/x
  3. Step 3: Cross multiply
    72,249.34x = 99,704.24 × 40,418.77
  4. Step 4: Simplify right side
    72,249.34x = 4,029,922,744.58
  5. Step 5: Solve for x
    x = 4,029,922,744.58/72,249.34
  6. Step 6: Final answer
    x = 55,777.99

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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.