Home / 57,137.96-85,674.12-30,451.09

Finding the Fourth Proportional to 57,137.96, 85,674.12 and 30,451.09

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Solution

The fourth proportional to 57,137.96, 85,674.12 and 30,451.09 is: 45,659.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,137.96 : 85,674.12 = 30,451.09 : x
  2. Step 2: Convert to fraction form
    57,137.96/85,674.12 = 30,451.09/x
  3. Step 3: Cross multiply
    57,137.96x = 85,674.12 × 30,451.09
  4. Step 4: Simplify right side
    57,137.96x = 2,608,870,338.79
  5. Step 5: Solve for x
    x = 2,608,870,338.79/57,137.96
  6. Step 6: Final answer
    x = 45,659.14

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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.