Home / 45,404.65-68,107.03-20,440.05

Finding the Fourth Proportional to 45,404.65, 68,107.03 and 20,440.05

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Solution

The fourth proportional to 45,404.65, 68,107.03 and 20,440.05 is: 30,660.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,404.65 : 68,107.03 = 20,440.05 : x
  2. Step 2: Convert to fraction form
    45,404.65/68,107.03 = 20,440.05/x
  3. Step 3: Cross multiply
    45,404.65x = 68,107.03 × 20,440.05
  4. Step 4: Simplify right side
    45,404.65x = 1,392,110,792.05
  5. Step 5: Solve for x
    x = 1,392,110,792.05/45,404.65
  6. Step 6: Final answer
    x = 30,660.09

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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.