Home / 82,578.70-113,976.75-54,287.02

Finding the Fourth Proportional to 82,578.70, 113,976.75 and 54,287.02

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Solution

The fourth proportional to 82,578.70, 113,976.75 and 54,287.02 is: 74,928.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,578.70 : 113,976.75 = 54,287.02 : x
  2. Step 2: Convert to fraction form
    82,578.70/113,976.75 = 54,287.02/x
  3. Step 3: Cross multiply
    82,578.70x = 113,976.75 × 54,287.02
  4. Step 4: Simplify right side
    82,578.70x = 6,187,458,106.79
  5. Step 5: Solve for x
    x = 6,187,458,106.79/82,578.70
  6. Step 6: Final answer
    x = 74,928.02

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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.