Home / 76,397.38-114,491.31-57,661.54

Finding the Fourth Proportional to 76,397.38, 114,491.31 and 57,661.54

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Solution

The fourth proportional to 76,397.38, 114,491.31 and 57,661.54 is: 86,413.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,397.38 : 114,491.31 = 57,661.54 : x
  2. Step 2: Convert to fraction form
    76,397.38/114,491.31 = 57,661.54/x
  3. Step 3: Cross multiply
    76,397.38x = 114,491.31 × 57,661.54
  4. Step 4: Simplify right side
    76,397.38x = 6,601,745,251.22
  5. Step 5: Solve for x
    x = 6,601,745,251.22/76,397.38
  6. Step 6: Final answer
    x = 86,413.24

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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.