Home / 54,016.70-80,986.65-20,723.90

Finding the Fourth Proportional to 54,016.70, 80,986.65 and 20,723.90

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Solution

The fourth proportional to 54,016.70, 80,986.65 and 20,723.90 is: 31,071.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,016.70 : 80,986.65 = 20,723.90 : x
  2. Step 2: Convert to fraction form
    54,016.70/80,986.65 = 20,723.90/x
  3. Step 3: Cross multiply
    54,016.70x = 80,986.65 × 20,723.90
  4. Step 4: Simplify right side
    54,016.70x = 1,678,359,235.94
  5. Step 5: Solve for x
    x = 1,678,359,235.94/54,016.70
  6. Step 6: Final answer
    x = 31,071.12

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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.