Home / 90,738.18-125,218.56-50,450.67

Finding the Fourth Proportional to 90,738.18, 125,218.56 and 50,450.67

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Solution

The fourth proportional to 90,738.18, 125,218.56 and 50,450.67 is: 69,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,738.18 : 125,218.56 = 50,450.67 : x
  2. Step 2: Convert to fraction form
    90,738.18/125,218.56 = 50,450.67/x
  3. Step 3: Cross multiply
    90,738.18x = 125,218.56 × 50,450.67
  4. Step 4: Simplify right side
    90,738.18x = 6,317,360,248.44
  5. Step 5: Solve for x
    x = 6,317,360,248.44/90,738.18
  6. Step 6: Final answer
    x = 69,621.85

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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.