Home / 85,559.34-128,232.09-41,174.18

Finding the Fourth Proportional to 85,559.34, 128,232.09 and 41,174.18

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Solution

The fourth proportional to 85,559.34, 128,232.09 and 41,174.18 is: 61,709.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,559.34 : 128,232.09 = 41,174.18 : x
  2. Step 2: Convert to fraction form
    85,559.34/128,232.09 = 41,174.18/x
  3. Step 3: Cross multiply
    85,559.34x = 128,232.09 × 41,174.18
  4. Step 4: Simplify right side
    85,559.34x = 5,279,850,514.28
  5. Step 5: Solve for x
    x = 5,279,850,514.28/85,559.34
  6. Step 6: Final answer
    x = 61,709.81

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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.