Home / 55,138.23-82,721.21-17,701.65

Finding the Fourth Proportional to 55,138.23, 82,721.21 and 17,701.65

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Solution

The fourth proportional to 55,138.23, 82,721.21 and 17,701.65 is: 26,556.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,138.23 : 82,721.21 = 17,701.65 : x
  2. Step 2: Convert to fraction form
    55,138.23/82,721.21 = 17,701.65/x
  3. Step 3: Cross multiply
    55,138.23x = 82,721.21 × 17,701.65
  4. Step 4: Simplify right side
    55,138.23x = 1,464,301,818.49
  5. Step 5: Solve for x
    x = 1,464,301,818.49/55,138.23
  6. Step 6: Final answer
    x = 26,556.92

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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.