Home / 73,922.21-102,012.69-39,930.70

Finding the Fourth Proportional to 73,922.21, 102,012.69 and 39,930.70

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Solution

The fourth proportional to 73,922.21, 102,012.69 and 39,930.70 is: 55,104.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,922.21 : 102,012.69 = 39,930.70 : x
  2. Step 2: Convert to fraction form
    73,922.21/102,012.69 = 39,930.70/x
  3. Step 3: Cross multiply
    73,922.21x = 102,012.69 × 39,930.70
  4. Step 4: Simplify right side
    73,922.21x = 4,073,437,410.87
  5. Step 5: Solve for x
    x = 4,073,437,410.87/73,922.21
  6. Step 6: Final answer
    x = 55,104.38

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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.