Home / 51,716.91-71,370.28-28,748.88

Finding the Fourth Proportional to 51,716.91, 71,370.28 and 28,748.88

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Solution

The fourth proportional to 51,716.91, 71,370.28 and 28,748.88 is: 39,673.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,716.91 : 71,370.28 = 28,748.88 : x
  2. Step 2: Convert to fraction form
    51,716.91/71,370.28 = 28,748.88/x
  3. Step 3: Cross multiply
    51,716.91x = 71,370.28 × 28,748.88
  4. Step 4: Simplify right side
    51,716.91x = 2,051,815,811.05
  5. Step 5: Solve for x
    x = 2,051,815,811.05/51,716.91
  6. Step 6: Final answer
    x = 39,673.99

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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.