Home / 57,119.82-78,853.95-35,910.78

Finding the Fourth Proportional to 57,119.82, 78,853.95 and 35,910.78

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Solution

The fourth proportional to 57,119.82, 78,853.95 and 35,910.78 is: 49,574.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,119.82 : 78,853.95 = 35,910.78 : x
  2. Step 2: Convert to fraction form
    57,119.82/78,853.95 = 35,910.78/x
  3. Step 3: Cross multiply
    57,119.82x = 78,853.95 × 35,910.78
  4. Step 4: Simplify right side
    57,119.82x = 2,831,706,850.58
  5. Step 5: Solve for x
    x = 2,831,706,850.58/57,119.82
  6. Step 6: Final answer
    x = 49,574.86

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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.