Home / 72,732.49-109,106.32-20,141.97

Finding the Fourth Proportional to 72,732.49, 109,106.32 and 20,141.97

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Solution

The fourth proportional to 72,732.49, 109,106.32 and 20,141.97 is: 30,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,732.49 : 109,106.32 = 20,141.97 : x
  2. Step 2: Convert to fraction form
    72,732.49/109,106.32 = 20,141.97/x
  3. Step 3: Cross multiply
    72,732.49x = 109,106.32 × 20,141.97
  4. Step 4: Simplify right side
    72,732.49x = 2,197,616,224.25
  5. Step 5: Solve for x
    x = 2,197,616,224.25/72,732.49
  6. Step 6: Final answer
    x = 30,215.06

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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.