Home / 85,558.59-128,230.97-41,173.43

Finding the Fourth Proportional to 85,558.59, 128,230.97 and 41,173.43

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Solution

The fourth proportional to 85,558.59, 128,230.97 and 41,173.43 is: 61,708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,558.59 : 128,230.97 = 41,173.43 : x
  2. Step 2: Convert to fraction form
    85,558.59/128,230.97 = 41,173.43/x
  3. Step 3: Cross multiply
    85,558.59x = 128,230.97 × 41,173.43
  4. Step 4: Simplify right side
    85,558.59x = 5,279,708,020.11
  5. Step 5: Solve for x
    x = 5,279,708,020.11/85,558.59
  6. Step 6: Final answer
    x = 61,708.68

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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.