Home / 45,115.80-67,660.56-13,524.60

Finding the Fourth Proportional to 45,115.80, 67,660.56 and 13,524.60

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Solution

The fourth proportional to 45,115.80, 67,660.56 and 13,524.60 is: 20,282.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,115.80 : 67,660.56 = 13,524.60 : x
  2. Step 2: Convert to fraction form
    45,115.80/67,660.56 = 13,524.60/x
  3. Step 3: Cross multiply
    45,115.80x = 67,660.56 × 13,524.60
  4. Step 4: Simplify right side
    45,115.80x = 915,082,009.78
  5. Step 5: Solve for x
    x = 915,082,009.78/45,115.80
  6. Step 6: Final answer
    x = 20,282.96

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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.