Home / 57,240.27-85,850.69-15,120.81

Finding the Fourth Proportional to 57,240.27, 85,850.69 and 15,120.81

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Solution

The fourth proportional to 57,240.27, 85,850.69 and 15,120.81 is: 22,678.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,240.27 : 85,850.69 = 15,120.81 : x
  2. Step 2: Convert to fraction form
    57,240.27/85,850.69 = 15,120.81/x
  3. Step 3: Cross multiply
    57,240.27x = 85,850.69 × 15,120.81
  4. Step 4: Simplify right side
    57,240.27x = 1,298,131,896.25
  5. Step 5: Solve for x
    x = 1,298,131,896.25/57,240.27
  6. Step 6: Final answer
    x = 22,678.65

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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.