Home / 85,615.26-128,448.33-41,229.18

Finding the Fourth Proportional to 85,615.26, 128,448.33 and 41,229.18

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Solution

The fourth proportional to 85,615.26, 128,448.33 and 41,229.18 is: 61,856.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,615.26 : 128,448.33 = 41,229.18 : x
  2. Step 2: Convert to fraction form
    85,615.26/128,448.33 = 41,229.18/x
  3. Step 3: Cross multiply
    85,615.26x = 128,448.33 × 41,229.18
  4. Step 4: Simplify right side
    85,615.26x = 5,295,819,318.27
  5. Step 5: Solve for x
    x = 5,295,819,318.27/85,615.26
  6. Step 6: Final answer
    x = 61,856.02

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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.