Home / 89,660.82-134,452.32-30,480.60

Finding the Fourth Proportional to 89,660.82, 134,452.32 and 30,480.60

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Solution

The fourth proportional to 89,660.82, 134,452.32 and 30,480.60 is: 45,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,660.82 : 134,452.32 = 30,480.60 : x
  2. Step 2: Convert to fraction form
    89,660.82/134,452.32 = 30,480.60/x
  3. Step 3: Cross multiply
    89,660.82x = 134,452.32 × 30,480.60
  4. Step 4: Simplify right side
    89,660.82x = 4,098,187,384.99
  5. Step 5: Solve for x
    x = 4,098,187,384.99/89,660.82
  6. Step 6: Final answer
    x = 45,707.67

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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.