Home / 55,276.08-82,912.56-13,722.96

Finding the Fourth Proportional to 55,276.08, 82,912.56 and 13,722.96

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Solution

The fourth proportional to 55,276.08, 82,912.56 and 13,722.96 is: 20,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,276.08 : 82,912.56 = 13,722.96 : x
  2. Step 2: Convert to fraction form
    55,276.08/82,912.56 = 13,722.96/x
  3. Step 3: Cross multiply
    55,276.08x = 82,912.56 × 13,722.96
  4. Step 4: Simplify right side
    55,276.08x = 1,137,805,744.38
  5. Step 5: Solve for x
    x = 1,137,805,744.38/55,276.08
  6. Step 6: Final answer
    x = 20,584.05

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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.