Home / 73,016.19-109,542.51-20,425.28

Finding the Fourth Proportional to 73,016.19, 109,542.51 and 20,425.28

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Solution

The fourth proportional to 73,016.19, 109,542.51 and 20,425.28 is: 30,643.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,016.19 : 109,542.51 = 20,425.28 : x
  2. Step 2: Convert to fraction form
    73,016.19/109,542.51 = 20,425.28/x
  3. Step 3: Cross multiply
    73,016.19x = 109,542.51 × 20,425.28
  4. Step 4: Simplify right side
    73,016.19x = 2,237,435,890.94
  5. Step 5: Solve for x
    x = 2,237,435,890.94/73,016.19
  6. Step 6: Final answer
    x = 30,643.01

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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.