Home / 85,841.10-128,725.20-41,481.45

Finding the Fourth Proportional to 85,841.10, 128,725.20 and 41,481.45

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Solution

The fourth proportional to 85,841.10, 128,725.20 and 41,481.45 is: 62,204.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,841.10 : 128,725.20 = 41,481.45 : x
  2. Step 2: Convert to fraction form
    85,841.10/128,725.20 = 41,481.45/x
  3. Step 3: Cross multiply
    85,841.10x = 128,725.20 × 41,481.45
  4. Step 4: Simplify right side
    85,841.10x = 5,339,707,947.54
  5. Step 5: Solve for x
    x = 5,339,707,947.54/85,841.10
  6. Step 6: Final answer
    x = 62,204.56

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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.