Home / 54,936.35-75,770.58-39,878.85

Finding the Fourth Proportional to 54,936.35, 75,770.58 and 39,878.85

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Solution

The fourth proportional to 54,936.35, 75,770.58 and 39,878.85 is: 55,002.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,936.35 : 75,770.58 = 39,878.85 : x
  2. Step 2: Convert to fraction form
    54,936.35/75,770.58 = 39,878.85/x
  3. Step 3: Cross multiply
    54,936.35x = 75,770.58 × 39,878.85
  4. Step 4: Simplify right side
    54,936.35x = 3,021,644,027.92
  5. Step 5: Solve for x
    x = 3,021,644,027.92/54,936.35
  6. Step 6: Final answer
    x = 55,002.64

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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.