Home / 57,156.29-78,914.19-35,678.73

Finding the Fourth Proportional to 57,156.29, 78,914.19 and 35,678.73

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Solution

The fourth proportional to 57,156.29, 78,914.19 and 35,678.73 is: 49,260.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,156.29 : 78,914.19 = 35,678.73 : x
  2. Step 2: Convert to fraction form
    57,156.29/78,914.19 = 35,678.73/x
  3. Step 3: Cross multiply
    57,156.29x = 78,914.19 × 35,678.73
  4. Step 4: Simplify right side
    57,156.29x = 2,815,558,078.18
  5. Step 5: Solve for x
    x = 2,815,558,078.18/57,156.29
  6. Step 6: Final answer
    x = 49,260.69

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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.