Home / 90,940.69-125,504.46-55,132.21

Finding the Fourth Proportional to 90,940.69, 125,504.46 and 55,132.21

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Solution

The fourth proportional to 90,940.69, 125,504.46 and 55,132.21 is: 76,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,940.69 : 125,504.46 = 55,132.21 : x
  2. Step 2: Convert to fraction form
    90,940.69/125,504.46 = 55,132.21/x
  3. Step 3: Cross multiply
    90,940.69x = 125,504.46 × 55,132.21
  4. Step 4: Simplify right side
    90,940.69x = 6,919,337,341.47
  5. Step 5: Solve for x
    x = 6,919,337,341.47/90,940.69
  6. Step 6: Final answer
    x = 76,086.27

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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.