Home / 85,336.24-128,006.24-26,170.60

Finding the Fourth Proportional to 85,336.24, 128,006.24 and 26,170.60

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Solution

The fourth proportional to 85,336.24, 128,006.24 and 26,170.60 is: 39,256.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,336.24 : 128,006.24 = 26,170.60 : x
  2. Step 2: Convert to fraction form
    85,336.24/128,006.24 = 26,170.60/x
  3. Step 3: Cross multiply
    85,336.24x = 128,006.24 × 26,170.60
  4. Step 4: Simplify right side
    85,336.24x = 3,350,000,104.54
  5. Step 5: Solve for x
    x = 3,350,000,104.54/85,336.24
  6. Step 6: Final answer
    x = 39,256.48

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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.