Home / 57,942.96-79,997.40-39,824.88

Finding the Fourth Proportional to 57,942.96, 79,997.40 and 39,824.88

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Solution

The fourth proportional to 57,942.96, 79,997.40 and 39,824.88 is: 54,983.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,942.96 : 79,997.40 = 39,824.88 : x
  2. Step 2: Convert to fraction form
    57,942.96/79,997.40 = 39,824.88/x
  3. Step 3: Cross multiply
    57,942.96x = 79,997.40 × 39,824.88
  4. Step 4: Simplify right side
    57,942.96x = 3,185,886,855.31
  5. Step 5: Solve for x
    x = 3,185,886,855.31/57,942.96
  6. Step 6: Final answer
    x = 54,983.16

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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.