Home / 51,149.46-76,722.92-13,709.49

Finding the Fourth Proportional to 51,149.46, 76,722.92 and 13,709.49

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Solution

The fourth proportional to 51,149.46, 76,722.92 and 13,709.49 is: 20,563.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,149.46 : 76,722.92 = 13,709.49 : x
  2. Step 2: Convert to fraction form
    51,149.46/76,722.92 = 13,709.49/x
  3. Step 3: Cross multiply
    51,149.46x = 76,722.92 × 13,709.49
  4. Step 4: Simplify right side
    51,149.46x = 1,051,832,035.96
  5. Step 5: Solve for x
    x = 1,051,832,035.96/51,149.46
  6. Step 6: Final answer
    x = 20,563.89

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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.