Home / 57,717.20-86,575.80-53,999.30

Finding the Fourth Proportional to 57,717.20, 86,575.80 and 53,999.30

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Solution

The fourth proportional to 57,717.20, 86,575.80 and 53,999.30 is: 80,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,717.20 : 86,575.80 = 53,999.30 : x
  2. Step 2: Convert to fraction form
    57,717.20/86,575.80 = 53,999.30/x
  3. Step 3: Cross multiply
    57,717.20x = 86,575.80 × 53,999.30
  4. Step 4: Simplify right side
    57,717.20x = 4,675,032,596.94
  5. Step 5: Solve for x
    x = 4,675,032,596.94/57,717.20
  6. Step 6: Final answer
    x = 80,998.95

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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.