Home / 55,116.72-82,679.28-17,161.20

Finding the Fourth Proportional to 55,116.72, 82,679.28 and 17,161.20

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Solution

The fourth proportional to 55,116.72, 82,679.28 and 17,161.20 is: 25,743.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,116.72 : 82,679.28 = 17,161.20 : x
  2. Step 2: Convert to fraction form
    55,116.72/82,679.28 = 17,161.20/x
  3. Step 3: Cross multiply
    55,116.72x = 82,679.28 × 17,161.20
  4. Step 4: Simplify right side
    55,116.72x = 1,418,875,659.94
  5. Step 5: Solve for x
    x = 1,418,875,659.94/55,116.72
  6. Step 6: Final answer
    x = 25,743.11

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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.