Home / 86,288.46-129,438.37-27,126.46

Finding the Fourth Proportional to 86,288.46, 129,438.37 and 27,126.46

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Solution

The fourth proportional to 86,288.46, 129,438.37 and 27,126.46 is: 40,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,288.46 : 129,438.37 = 27,126.46 : x
  2. Step 2: Convert to fraction form
    86,288.46/129,438.37 = 27,126.46/x
  3. Step 3: Cross multiply
    86,288.46x = 129,438.37 × 27,126.46
  4. Step 4: Simplify right side
    86,288.46x = 3,511,204,961.98
  5. Step 5: Solve for x
    x = 3,511,204,961.98/86,288.46
  6. Step 6: Final answer
    x = 40,691.48

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1.5x scale

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.