Home / 36,120.12-54,169.08-12,741.09

Finding the Fourth Proportional to 36,120.12, 54,169.08 and 12,741.09

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Solution

The fourth proportional to 36,120.12, 54,169.08 and 12,741.09 is: 19,107.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,120.12 : 54,169.08 = 12,741.09 : x
  2. Step 2: Convert to fraction form
    36,120.12/54,169.08 = 12,741.09/x
  3. Step 3: Cross multiply
    36,120.12x = 54,169.08 × 12,741.09
  4. Step 4: Simplify right side
    36,120.12x = 690,173,123.50
  5. Step 5: Solve for x
    x = 690,173,123.50/36,120.12
  6. Step 6: Final answer
    x = 19,107.72

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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.