Home / 86,243.38-129,385.82-36,337.75

Finding the Fourth Proportional to 86,243.38, 129,385.82 and 36,337.75

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Solution

The fourth proportional to 86,243.38, 129,385.82 and 36,337.75 is: 54,515.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,243.38 : 129,385.82 = 36,337.75 : x
  2. Step 2: Convert to fraction form
    86,243.38/129,385.82 = 36,337.75/x
  3. Step 3: Cross multiply
    86,243.38x = 129,385.82 × 36,337.75
  4. Step 4: Simplify right side
    86,243.38x = 4,701,589,348.08
  5. Step 5: Solve for x
    x = 4,701,589,348.08/86,243.38
  6. Step 6: Final answer
    x = 54,515.37

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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.