Home / 50,728.75-70,005.92-28,372.75

Finding the Fourth Proportional to 50,728.75, 70,005.92 and 28,372.75

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Solution

The fourth proportional to 50,728.75, 70,005.92 and 28,372.75 is: 39,154.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,728.75 : 70,005.92 = 28,372.75 : x
  2. Step 2: Convert to fraction form
    50,728.75/70,005.92 = 28,372.75/x
  3. Step 3: Cross multiply
    50,728.75x = 70,005.92 × 28,372.75
  4. Step 4: Simplify right side
    50,728.75x = 1,986,260,324.82
  5. Step 5: Solve for x
    x = 1,986,260,324.82/50,728.75
  6. Step 6: Final answer
    x = 39,154.53

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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.