Home / 55,380.36-76,398.32-40,249.56

Finding the Fourth Proportional to 55,380.36, 76,398.32 and 40,249.56

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Solution

The fourth proportional to 55,380.36, 76,398.32 and 40,249.56 is: 55,525.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,380.36 : 76,398.32 = 40,249.56 : x
  2. Step 2: Convert to fraction form
    55,380.36/76,398.32 = 40,249.56/x
  3. Step 3: Cross multiply
    55,380.36x = 76,398.32 × 40,249.56
  4. Step 4: Simplify right side
    55,380.36x = 3,074,998,764.74
  5. Step 5: Solve for x
    x = 3,074,998,764.74/55,380.36
  6. Step 6: Final answer
    x = 55,525.08

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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.