Home / 51,441.28-77,164.93-19,851.51

Finding the Fourth Proportional to 51,441.28, 77,164.93 and 19,851.51

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Solution

The fourth proportional to 51,441.28, 77,164.93 and 19,851.51 is: 29,778.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,441.28 : 77,164.93 = 19,851.51 : x
  2. Step 2: Convert to fraction form
    51,441.28/77,164.93 = 19,851.51/x
  3. Step 3: Cross multiply
    51,441.28x = 77,164.93 × 19,851.51
  4. Step 4: Simplify right side
    51,441.28x = 1,531,839,986.82
  5. Step 5: Solve for x
    x = 1,531,839,986.82/51,441.28
  6. Step 6: Final answer
    x = 29,778.42

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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.