Home / 55,207.40-82,811.10-20,160.73

Finding the Fourth Proportional to 55,207.40, 82,811.10 and 20,160.73

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Solution

The fourth proportional to 55,207.40, 82,811.10 and 20,160.73 is: 30,241.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,207.40 : 82,811.10 = 20,160.73 : x
  2. Step 2: Convert to fraction form
    55,207.40/82,811.10 = 20,160.73/x
  3. Step 3: Cross multiply
    55,207.40x = 82,811.10 × 20,160.73
  4. Step 4: Simplify right side
    55,207.40x = 1,669,531,814.05
  5. Step 5: Solve for x
    x = 1,669,531,814.05/55,207.40
  6. Step 6: Final answer
    x = 30,241.09

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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.