Home / 51,015.84-76,556.16-19,851.36

Finding the Fourth Proportional to 51,015.84, 76,556.16 and 19,851.36

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Solution

The fourth proportional to 51,015.84, 76,556.16 and 19,851.36 is: 29,789.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,015.84 : 76,556.16 = 19,851.36 : x
  2. Step 2: Convert to fraction form
    51,015.84/76,556.16 = 19,851.36/x
  3. Step 3: Cross multiply
    51,015.84x = 76,556.16 × 19,851.36
  4. Step 4: Simplify right side
    51,015.84x = 1,519,743,892.38
  5. Step 5: Solve for x
    x = 1,519,743,892.38/51,015.84
  6. Step 6: Final answer
    x = 29,789.65

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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.