Home / 49,057.79-67,712.70-28,928.07

Finding the Fourth Proportional to 49,057.79, 67,712.70 and 28,928.07

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Solution

The fourth proportional to 49,057.79, 67,712.70 and 28,928.07 is: 39,928.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,057.79 : 67,712.70 = 28,928.07 : x
  2. Step 2: Convert to fraction form
    49,057.79/67,712.70 = 28,928.07/x
  3. Step 3: Cross multiply
    49,057.79x = 67,712.70 × 28,928.07
  4. Step 4: Simplify right side
    49,057.79x = 1,958,797,725.49
  5. Step 5: Solve for x
    x = 1,958,797,725.49/49,057.79
  6. Step 6: Final answer
    x = 39,928.37

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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.