Home / 90,777.54-125,185.05-60,564.09

Finding the Fourth Proportional to 90,777.54, 125,185.05 and 60,564.09

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Solution

The fourth proportional to 90,777.54, 125,185.05 and 60,564.09 is: 83,519.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,777.54 : 125,185.05 = 60,564.09 : x
  2. Step 2: Convert to fraction form
    90,777.54/125,185.05 = 60,564.09/x
  3. Step 3: Cross multiply
    90,777.54x = 125,185.05 × 60,564.09
  4. Step 4: Simplify right side
    90,777.54x = 7,581,718,634.85
  5. Step 5: Solve for x
    x = 7,581,718,634.85/90,777.54
  6. Step 6: Final answer
    x = 83,519.76

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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.