Home / 56,910.40-85,365.60-39,195.70

Finding the Fourth Proportional to 56,910.40, 85,365.60 and 39,195.70

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Solution

The fourth proportional to 56,910.40, 85,365.60 and 39,195.70 is: 58,793.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,910.40 : 85,365.60 = 39,195.70 : x
  2. Step 2: Convert to fraction form
    56,910.40/85,365.60 = 39,195.70/x
  3. Step 3: Cross multiply
    56,910.40x = 85,365.60 × 39,195.70
  4. Step 4: Simplify right side
    56,910.40x = 3,345,964,447.92
  5. Step 5: Solve for x
    x = 3,345,964,447.92/56,910.40
  6. Step 6: Final answer
    x = 58,793.55

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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.