Home / 86,222.28-129,256.56-33,619.80

Finding the Fourth Proportional to 86,222.28, 129,256.56 and 33,619.80

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Solution

The fourth proportional to 86,222.28, 129,256.56 and 33,619.80 is: 50,399.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,222.28 : 129,256.56 = 33,619.80 : x
  2. Step 2: Convert to fraction form
    86,222.28/129,256.56 = 33,619.80/x
  3. Step 3: Cross multiply
    86,222.28x = 129,256.56 × 33,619.80
  4. Step 4: Simplify right side
    86,222.28x = 4,345,579,695.89
  5. Step 5: Solve for x
    x = 4,345,579,695.89/86,222.28
  6. Step 6: Final answer
    x = 50,399.73

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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.