Home / 82,065.72-123,329.40-48,791.76

Finding the Fourth Proportional to 82,065.72, 123,329.40 and 48,791.76

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Solution

The fourth proportional to 82,065.72, 123,329.40 and 48,791.76 is: 73,324.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,065.72 : 123,329.40 = 48,791.76 : x
  2. Step 2: Convert to fraction form
    82,065.72/123,329.40 = 48,791.76/x
  3. Step 3: Cross multiply
    82,065.72x = 123,329.40 × 48,791.76
  4. Step 4: Simplify right side
    82,065.72x = 6,017,458,485.74
  5. Step 5: Solve for x
    x = 6,017,458,485.74/82,065.72
  6. Step 6: Final answer
    x = 73,324.87

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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.