Home / 71,033.28-106,555.20-18,443.04

Finding the Fourth Proportional to 71,033.28, 106,555.20 and 18,443.04

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Solution

The fourth proportional to 71,033.28, 106,555.20 and 18,443.04 is: 27,665.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,033.28 : 106,555.20 = 18,443.04 : x
  2. Step 2: Convert to fraction form
    71,033.28/106,555.20 = 18,443.04/x
  3. Step 3: Cross multiply
    71,033.28x = 106,555.20 × 18,443.04
  4. Step 4: Simplify right side
    71,033.28x = 1,965,201,815.81
  5. Step 5: Solve for x
    x = 1,965,201,815.81/71,033.28
  6. Step 6: Final answer
    x = 27,665.93

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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.