Home / 276,939.67-415,372.51-77,243.35

Finding the Fourth Proportional to 276,939.67, 415,372.51 and 77,243.35

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Solution

The fourth proportional to 276,939.67, 415,372.51 and 77,243.35 is: 115,854.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,939.67 : 415,372.51 = 77,243.35 : x
  2. Step 2: Convert to fraction form
    276,939.67/415,372.51 = 77,243.35/x
  3. Step 3: Cross multiply
    276,939.67x = 415,372.51 × 77,243.35
  4. Step 4: Simplify right side
    276,939.67x = 32,084,764,170.31
  5. Step 5: Solve for x
    x = 32,084,764,170.31/276,939.67
  6. Step 6: Final answer
    x = 115,854.71

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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.