Home / 40,140.80-60,211.20-19,366.40

Finding the Fourth Proportional to 40,140.80, 60,211.20 and 19,366.40

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Solution

The fourth proportional to 40,140.80, 60,211.20 and 19,366.40 is: 29,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,140.80 : 60,211.20 = 19,366.40 : x
  2. Step 2: Convert to fraction form
    40,140.80/60,211.20 = 19,366.40/x
  3. Step 3: Cross multiply
    40,140.80x = 60,211.20 × 19,366.40
  4. Step 4: Simplify right side
    40,140.80x = 1,166,074,183.68
  5. Step 5: Solve for x
    x = 1,166,074,183.68/40,140.80
  6. Step 6: Final answer
    x = 29,049.60

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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.