Home / 50,800.50-70,103.52-28,138.62

Finding the Fourth Proportional to 50,800.50, 70,103.52 and 28,138.62

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Solution

The fourth proportional to 50,800.50, 70,103.52 and 28,138.62 is: 38,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,800.50 : 70,103.52 = 28,138.62 : x
  2. Step 2: Convert to fraction form
    50,800.50/70,103.52 = 28,138.62/x
  3. Step 3: Cross multiply
    50,800.50x = 70,103.52 × 28,138.62
  4. Step 4: Simplify right side
    50,800.50x = 1,972,616,309.94
  5. Step 5: Solve for x
    x = 1,972,616,309.94/50,800.50
  6. Step 6: Final answer
    x = 38,830.65

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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.