Home / 86,555.78-129,755.30-33,951.14

Finding the Fourth Proportional to 86,555.78, 129,755.30 and 33,951.14

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Solution

The fourth proportional to 86,555.78, 129,755.30 and 33,951.14 is: 50,895.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,555.78 : 129,755.30 = 33,951.14 : x
  2. Step 2: Convert to fraction form
    86,555.78/129,755.30 = 33,951.14/x
  3. Step 3: Cross multiply
    86,555.78x = 129,755.30 × 33,951.14
  4. Step 4: Simplify right side
    86,555.78x = 4,405,339,537.51
  5. Step 5: Solve for x
    x = 4,405,339,537.51/86,555.78
  6. Step 6: Final answer
    x = 50,895.96

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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.