Home / 75,734.37-113,601.55-20,330.37

Finding the Fourth Proportional to 75,734.37, 113,601.55 and 20,330.37

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Solution

The fourth proportional to 75,734.37, 113,601.55 and 20,330.37 is: 30,495.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,734.37 : 113,601.55 = 20,330.37 : x
  2. Step 2: Convert to fraction form
    75,734.37/113,601.55 = 20,330.37/x
  3. Step 3: Cross multiply
    75,734.37x = 113,601.55 × 20,330.37
  4. Step 4: Simplify right side
    75,734.37x = 2,309,561,240.45
  5. Step 5: Solve for x
    x = 2,309,561,240.45/75,734.37
  6. Step 6: Final answer
    x = 30,495.55

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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.