Home / 82,584.74-113,976.51-77,517.92

Finding the Fourth Proportional to 82,584.74, 113,976.51 and 77,517.92

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Solution

The fourth proportional to 82,584.74, 113,976.51 and 77,517.92 is: 106,983.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,584.74 : 113,976.51 = 77,517.92 : x
  2. Step 2: Convert to fraction form
    82,584.74/113,976.51 = 77,517.92/x
  3. Step 3: Cross multiply
    82,584.74x = 113,976.51 × 77,517.92
  4. Step 4: Simplify right side
    82,584.74x = 8,835,221,978.31
  5. Step 5: Solve for x
    x = 8,835,221,978.31/82,584.74
  6. Step 6: Final answer
    x = 106,983.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.