Home / 69,129.69-95,372.88-40,440.21

Finding the Fourth Proportional to 69,129.69, 95,372.88 and 40,440.21

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Solution

The fourth proportional to 69,129.69, 95,372.88 and 40,440.21 is: 55,792.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,129.69 : 95,372.88 = 40,440.21 : x
  2. Step 2: Convert to fraction form
    69,129.69/95,372.88 = 40,440.21/x
  3. Step 3: Cross multiply
    69,129.69x = 95,372.88 × 40,440.21
  4. Step 4: Simplify right side
    69,129.69x = 3,856,899,295.50
  5. Step 5: Solve for x
    x = 3,856,899,295.50/69,129.69
  6. Step 6: Final answer
    x = 55,792.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.