Home / 51,135.64-76,704.01-17,855.78

Finding the Fourth Proportional to 51,135.64, 76,704.01 and 17,855.78

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Solution

The fourth proportional to 51,135.64, 76,704.01 and 17,855.78 is: 26,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,135.64 : 76,704.01 = 17,855.78 : x
  2. Step 2: Convert to fraction form
    51,135.64/76,704.01 = 17,855.78/x
  3. Step 3: Cross multiply
    51,135.64x = 76,704.01 × 17,855.78
  4. Step 4: Simplify right side
    51,135.64x = 1,369,609,499.52
  5. Step 5: Solve for x
    x = 1,369,609,499.52/51,135.64
  6. Step 6: Final answer
    x = 26,783.85

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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.