Home / 82,635.12-123,930.60-35,877.36

Finding the Fourth Proportional to 82,635.12, 123,930.60 and 35,877.36

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Solution

The fourth proportional to 82,635.12, 123,930.60 and 35,877.36 is: 53,806.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,635.12 : 123,930.60 = 35,877.36 : x
  2. Step 2: Convert to fraction form
    82,635.12/123,930.60 = 35,877.36/x
  3. Step 3: Cross multiply
    82,635.12x = 123,930.60 × 35,877.36
  4. Step 4: Simplify right side
    82,635.12x = 4,446,302,751.22
  5. Step 5: Solve for x
    x = 4,446,302,751.22/82,635.12
  6. Step 6: Final answer
    x = 53,806.45

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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.