Home / 51,500.64-71,072.91-28,839.43

Finding the Fourth Proportional to 51,500.64, 71,072.91 and 28,839.43

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Solution

The fourth proportional to 51,500.64, 71,072.91 and 28,839.43 is: 39,799.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,500.64 : 71,072.91 = 28,839.43 : x
  2. Step 2: Convert to fraction form
    51,500.64/71,072.91 = 28,839.43/x
  3. Step 3: Cross multiply
    51,500.64x = 71,072.91 × 28,839.43
  4. Step 4: Simplify right side
    51,500.64x = 2,049,702,247.61
  5. Step 5: Solve for x
    x = 2,049,702,247.61/51,500.64
  6. Step 6: Final answer
    x = 39,799.55

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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.