Home / 57,357.45-79,165.94-31,872.57

Finding the Fourth Proportional to 57,357.45, 79,165.94 and 31,872.57

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Solution

The fourth proportional to 57,357.45, 79,165.94 and 31,872.57 is: 43,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,357.45 : 79,165.94 = 31,872.57 : x
  2. Step 2: Convert to fraction form
    57,357.45/79,165.94 = 31,872.57/x
  3. Step 3: Cross multiply
    57,357.45x = 79,165.94 × 31,872.57
  4. Step 4: Simplify right side
    57,357.45x = 2,523,221,964.27
  5. Step 5: Solve for x
    x = 2,523,221,964.27/57,357.45
  6. Step 6: Final answer
    x = 43,991.18

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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.