Home / 81,913.92-113,006.88-50,072.64

Finding the Fourth Proportional to 81,913.92, 113,006.88 and 50,072.64

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Solution

The fourth proportional to 81,913.92, 113,006.88 and 50,072.64 is: 69,079.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,913.92 : 113,006.88 = 50,072.64 : x
  2. Step 2: Convert to fraction form
    81,913.92/113,006.88 = 50,072.64/x
  3. Step 3: Cross multiply
    81,913.92x = 113,006.88 × 50,072.64
  4. Step 4: Simplify right side
    81,913.92x = 5,658,552,819.76
  5. Step 5: Solve for x
    x = 5,658,552,819.76/81,913.92
  6. Step 6: Final answer
    x = 69,079.26

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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.