Home / 57,471.12-86,188.05-20,950.83

Finding the Fourth Proportional to 57,471.12, 86,188.05 and 20,950.83

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Solution

The fourth proportional to 57,471.12, 86,188.05 and 20,950.83 is: 31,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,471.12 : 86,188.05 = 20,950.83 : x
  2. Step 2: Convert to fraction form
    57,471.12/86,188.05 = 20,950.83/x
  3. Step 3: Cross multiply
    57,471.12x = 86,188.05 × 20,950.83
  4. Step 4: Simplify right side
    57,471.12x = 1,805,711,183.58
  5. Step 5: Solve for x
    x = 1,805,711,183.58/57,471.12
  6. Step 6: Final answer
    x = 31,419.45

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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.