Home / 72,987.87-109,433.19-26,234.67

Finding the Fourth Proportional to 72,987.87, 109,433.19 and 26,234.67

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Solution

The fourth proportional to 72,987.87, 109,433.19 and 26,234.67 is: 39,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,987.87 : 109,433.19 = 26,234.67 : x
  2. Step 2: Convert to fraction form
    72,987.87/109,433.19 = 26,234.67/x
  3. Step 3: Cross multiply
    72,987.87x = 109,433.19 × 26,234.67
  4. Step 4: Simplify right side
    72,987.87x = 2,870,943,626.70
  5. Step 5: Solve for x
    x = 2,870,943,626.70/72,987.87
  6. Step 6: Final answer
    x = 39,334.53

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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.