Home / 50,279.14-75,418.78-21,420.33

Finding the Fourth Proportional to 50,279.14, 75,418.78 and 21,420.33

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Solution

The fourth proportional to 50,279.14, 75,418.78 and 21,420.33 is: 32,130.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,279.14 : 75,418.78 = 21,420.33 : x
  2. Step 2: Convert to fraction form
    50,279.14/75,418.78 = 21,420.33/x
  3. Step 3: Cross multiply
    50,279.14x = 75,418.78 × 21,420.33
  4. Step 4: Simplify right side
    50,279.14x = 1,615,494,778.70
  5. Step 5: Solve for x
    x = 1,615,494,778.70/50,279.14
  6. Step 6: Final answer
    x = 32,130.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.