Home / 67,829.32-101,761.26-21,082.60

Finding the Fourth Proportional to 67,829.32, 101,761.26 and 21,082.60

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Solution

The fourth proportional to 67,829.32, 101,761.26 and 21,082.60 is: 31,629.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,829.32 : 101,761.26 = 21,082.60 : x
  2. Step 2: Convert to fraction form
    67,829.32/101,761.26 = 21,082.60/x
  3. Step 3: Cross multiply
    67,829.32x = 101,761.26 × 21,082.60
  4. Step 4: Simplify right side
    67,829.32x = 2,145,391,940.08
  5. Step 5: Solve for x
    x = 2,145,391,940.08/67,829.32
  6. Step 6: Final answer
    x = 31,629.27

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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.