Home / 75,920.31-104,768.23-41,928.12

Finding the Fourth Proportional to 75,920.31, 104,768.23 and 41,928.12

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Solution

The fourth proportional to 75,920.31, 104,768.23 and 41,928.12 is: 57,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,920.31 : 104,768.23 = 41,928.12 : x
  2. Step 2: Convert to fraction form
    75,920.31/104,768.23 = 41,928.12/x
  3. Step 3: Cross multiply
    75,920.31x = 104,768.23 × 41,928.12
  4. Step 4: Simplify right side
    75,920.31x = 4,392,734,919.63
  5. Step 5: Solve for x
    x = 4,392,734,919.63/75,920.31
  6. Step 6: Final answer
    x = 57,859.81

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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.