Home / 51,131.70-76,685.63-19,530.27

Finding the Fourth Proportional to 51,131.70, 76,685.63 and 19,530.27

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Solution

The fourth proportional to 51,131.70, 76,685.63 and 19,530.27 is: 29,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,131.70 : 76,685.63 = 19,530.27 : x
  2. Step 2: Convert to fraction form
    51,131.70/76,685.63 = 19,530.27/x
  3. Step 3: Cross multiply
    51,131.70x = 76,685.63 × 19,530.27
  4. Step 4: Simplify right side
    51,131.70x = 1,497,690,961.37
  5. Step 5: Solve for x
    x = 1,497,690,961.37/51,131.70
  6. Step 6: Final answer
    x = 29,290.85

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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.