Home / 50,681.78-69,943.30-28,020.36

Finding the Fourth Proportional to 50,681.78, 69,943.30 and 28,020.36

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Solution

The fourth proportional to 50,681.78, 69,943.30 and 28,020.36 is: 38,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,681.78 : 69,943.30 = 28,020.36 : x
  2. Step 2: Convert to fraction form
    50,681.78/69,943.30 = 28,020.36/x
  3. Step 3: Cross multiply
    50,681.78x = 69,943.30 × 28,020.36
  4. Step 4: Simplify right side
    50,681.78x = 1,959,836,375.54
  5. Step 5: Solve for x
    x = 1,959,836,375.54/50,681.78
  6. Step 6: Final answer
    x = 38,669.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.