Home / 70,776.27-106,164.41-18,185.81

Finding the Fourth Proportional to 70,776.27, 106,164.41 and 18,185.81

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Solution

The fourth proportional to 70,776.27, 106,164.41 and 18,185.81 is: 27,278.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,776.27 : 106,164.41 = 18,185.81 : x
  2. Step 2: Convert to fraction form
    70,776.27/106,164.41 = 18,185.81/x
  3. Step 3: Cross multiply
    70,776.27x = 106,164.41 × 18,185.81
  4. Step 4: Simplify right side
    70,776.27x = 1,930,685,167.27
  5. Step 5: Solve for x
    x = 1,930,685,167.27/70,776.27
  6. Step 6: Final answer
    x = 27,278.71

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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.