Home / 50,812.38-70,121.14-28,456.38

Finding the Fourth Proportional to 50,812.38, 70,121.14 and 28,456.38

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Solution

The fourth proportional to 50,812.38, 70,121.14 and 28,456.38 is: 39,269.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,812.38 : 70,121.14 = 28,456.38 : x
  2. Step 2: Convert to fraction form
    50,812.38/70,121.14 = 28,456.38/x
  3. Step 3: Cross multiply
    50,812.38x = 70,121.14 × 28,456.38
  4. Step 4: Simplify right side
    50,812.38x = 1,995,393,805.87
  5. Step 5: Solve for x
    x = 1,995,393,805.87/50,812.38
  6. Step 6: Final answer
    x = 39,269.84

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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.