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Finding the Fourth Proportional to 57,351.62, 79,142.57 and 31,859.65

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Solution

The fourth proportional to 57,351.62, 79,142.57 and 31,859.65 is: 43,964.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,351.62 : 79,142.57 = 31,859.65 : x
  2. Step 2: Convert to fraction form
    57,351.62/79,142.57 = 31,859.65/x
  3. Step 3: Cross multiply
    57,351.62x = 79,142.57 × 31,859.65
  4. Step 4: Simplify right side
    57,351.62x = 2,521,454,025.29
  5. Step 5: Solve for x
    x = 2,521,454,025.29/57,351.62
  6. Step 6: Final answer
    x = 43,964.83

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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.