Home / 50,715.33-69,986.43-28,053.78

Finding the Fourth Proportional to 50,715.33, 69,986.43 and 28,053.78

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Solution

The fourth proportional to 50,715.33, 69,986.43 and 28,053.78 is: 38,713.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,715.33 : 69,986.43 = 28,053.78 : x
  2. Step 2: Convert to fraction form
    50,715.33/69,986.43 = 28,053.78/x
  3. Step 3: Cross multiply
    50,715.33x = 69,986.43 × 28,053.78
  4. Step 4: Simplify right side
    50,715.33x = 1,963,383,910.21
  5. Step 5: Solve for x
    x = 1,963,383,910.21/50,715.33
  6. Step 6: Final answer
    x = 38,713.82

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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.