Home / 73,269.25-109,888.49-20,666.43

Finding the Fourth Proportional to 73,269.25, 109,888.49 and 20,666.43

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Solution

The fourth proportional to 73,269.25, 109,888.49 and 20,666.43 is: 30,995.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,269.25 : 109,888.49 = 20,666.43 : x
  2. Step 2: Convert to fraction form
    73,269.25/109,888.49 = 20,666.43/x
  3. Step 3: Cross multiply
    73,269.25x = 109,888.49 × 20,666.43
  4. Step 4: Simplify right side
    73,269.25x = 2,271,002,683.06
  5. Step 5: Solve for x
    x = 2,271,002,683.06/73,269.25
  6. Step 6: Final answer
    x = 30,995.31

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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.