Home / 80,912.60-121,290.52-30,954.22

Finding the Fourth Proportional to 80,912.60, 121,290.52 and 30,954.22

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Solution

The fourth proportional to 80,912.60, 121,290.52 and 30,954.22 is: 46,401.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,912.60 : 121,290.52 = 30,954.22 : x
  2. Step 2: Convert to fraction form
    80,912.60/121,290.52 = 30,954.22/x
  3. Step 3: Cross multiply
    80,912.60x = 121,290.52 × 30,954.22
  4. Step 4: Simplify right side
    80,912.60x = 3,754,453,439.99
  5. Step 5: Solve for x
    x = 3,754,453,439.99/80,912.60
  6. Step 6: Final answer
    x = 46,401.34

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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.