Home / 90,729.45-125,210.61-50,441.67

Finding the Fourth Proportional to 90,729.45, 125,210.61 and 50,441.67

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Solution

The fourth proportional to 90,729.45, 125,210.61 and 50,441.67 is: 69,611.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,729.45 : 125,210.61 = 50,441.67 : x
  2. Step 2: Convert to fraction form
    90,729.45/125,210.61 = 50,441.67/x
  3. Step 3: Cross multiply
    90,729.45x = 125,210.61 × 50,441.67
  4. Step 4: Simplify right side
    90,729.45x = 6,315,832,270.12
  5. Step 5: Solve for x
    x = 6,315,832,270.12/90,729.45
  6. Step 6: Final answer
    x = 69,611.71

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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.