Home / 51,944.43-77,929.61-20,778.87

Finding the Fourth Proportional to 51,944.43, 77,929.61 and 20,778.87

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Solution

The fourth proportional to 51,944.43, 77,929.61 and 20,778.87 is: 31,173.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,944.43 : 77,929.61 = 20,778.87 : x
  2. Step 2: Convert to fraction form
    51,944.43/77,929.61 = 20,778.87/x
  3. Step 3: Cross multiply
    51,944.43x = 77,929.61 × 20,778.87
  4. Step 4: Simplify right side
    51,944.43x = 1,619,289,131.45
  5. Step 5: Solve for x
    x = 1,619,289,131.45/51,944.43
  6. Step 6: Final answer
    x = 31,173.49

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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.