Home / 45,043.10-67,573.78-13,453.78

Finding the Fourth Proportional to 45,043.10, 67,573.78 and 13,453.78

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Solution

The fourth proportional to 45,043.10, 67,573.78 and 13,453.78 is: 20,183.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,043.10 : 67,573.78 = 13,453.78 : x
  2. Step 2: Convert to fraction form
    45,043.10/67,573.78 = 13,453.78/x
  3. Step 3: Cross multiply
    45,043.10x = 67,573.78 × 13,453.78
  4. Step 4: Simplify right side
    45,043.10x = 909,122,769.89
  5. Step 5: Solve for x
    x = 909,122,769.89/45,043.10
  6. Step 6: Final answer
    x = 20,183.40

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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.