Home / 66,721.24-100,102.38-35,533

Finding the Fourth Proportional to 66,721.24, 100,102.38 and 35,533

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Solution

The fourth proportional to 66,721.24, 100,102.38 and 35,533 is: 53,310.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,721.24 : 100,102.38 = 35,533 : x
  2. Step 2: Convert to fraction form
    66,721.24/100,102.38 = 35,533/x
  3. Step 3: Cross multiply
    66,721.24x = 100,102.38 × 35,533
  4. Step 4: Simplify right side
    66,721.24x = 3,556,937,868.54
  5. Step 5: Solve for x
    x = 3,556,937,868.54/66,721.24
  6. Step 6: Final answer
    x = 53,310.43

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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.