Home / 84,874.11-117,082.34-57,651.59

Finding the Fourth Proportional to 84,874.11, 117,082.34 and 57,651.59

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Solution

The fourth proportional to 84,874.11, 117,082.34 and 57,651.59 is: 79,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,874.11 : 117,082.34 = 57,651.59 : x
  2. Step 2: Convert to fraction form
    84,874.11/117,082.34 = 57,651.59/x
  3. Step 3: Cross multiply
    84,874.11x = 117,082.34 × 57,651.59
  4. Step 4: Simplify right side
    84,874.11x = 6,749,982,188.25
  5. Step 5: Solve for x
    x = 6,749,982,188.25/84,874.11
  6. Step 6: Final answer
    x = 79,529.34

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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.