Home / 85,355.47-128,049.68-32,760.85

Finding the Fourth Proportional to 85,355.47, 128,049.68 and 32,760.85

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Solution

The fourth proportional to 85,355.47, 128,049.68 and 32,760.85 is: 49,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,355.47 : 128,049.68 = 32,760.85 : x
  2. Step 2: Convert to fraction form
    85,355.47/128,049.68 = 32,760.85/x
  3. Step 3: Cross multiply
    85,355.47x = 128,049.68 × 32,760.85
  4. Step 4: Simplify right side
    85,355.47x = 4,195,016,195.22
  5. Step 5: Solve for x
    x = 4,195,016,195.22/85,355.47
  6. Step 6: Final answer
    x = 49,147.60

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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.