Home / 51,704.76-77,578.26-18,431.16

Finding the Fourth Proportional to 51,704.76, 77,578.26 and 18,431.16

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Solution

The fourth proportional to 51,704.76, 77,578.26 and 18,431.16 is: 27,654.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,704.76 : 77,578.26 = 18,431.16 : x
  2. Step 2: Convert to fraction form
    51,704.76/77,578.26 = 18,431.16/x
  3. Step 3: Cross multiply
    51,704.76x = 77,578.26 × 18,431.16
  4. Step 4: Simplify right side
    51,704.76x = 1,429,857,322.58
  5. Step 5: Solve for x
    x = 1,429,857,322.58/51,704.76
  6. Step 6: Final answer
    x = 27,654.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.