Home / 55,211.24-82,791.48-17,764.40

Finding the Fourth Proportional to 55,211.24, 82,791.48 and 17,764.40

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Solution

The fourth proportional to 55,211.24, 82,791.48 and 17,764.40 is: 26,638.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,211.24 : 82,791.48 = 17,764.40 : x
  2. Step 2: Convert to fraction form
    55,211.24/82,791.48 = 17,764.40/x
  3. Step 3: Cross multiply
    55,211.24x = 82,791.48 × 17,764.40
  4. Step 4: Simplify right side
    55,211.24x = 1,470,740,967.31
  5. Step 5: Solve for x
    x = 1,470,740,967.31/55,211.24
  6. Step 6: Final answer
    x = 26,638.43

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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.