Home / 50,800.04-70,103.30-28,138.96

Finding the Fourth Proportional to 50,800.04, 70,103.30 and 28,138.96

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Solution

The fourth proportional to 50,800.04, 70,103.30 and 28,138.96 is: 38,831.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,800.04 : 70,103.30 = 28,138.96 : x
  2. Step 2: Convert to fraction form
    50,800.04/70,103.30 = 28,138.96/x
  3. Step 3: Cross multiply
    50,800.04x = 70,103.30 × 28,138.96
  4. Step 4: Simplify right side
    50,800.04x = 1,972,633,604.05
  5. Step 5: Solve for x
    x = 1,972,633,604.05/50,800.04
  6. Step 6: Final answer
    x = 38,831.34

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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.