Home / 84,077.75-115,961.65-53,865.87

Finding the Fourth Proportional to 84,077.75, 115,961.65 and 53,865.87

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Solution

The fourth proportional to 84,077.75, 115,961.65 and 53,865.87 is: 74,292.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,077.75 : 115,961.65 = 53,865.87 : x
  2. Step 2: Convert to fraction form
    84,077.75/115,961.65 = 53,865.87/x
  3. Step 3: Cross multiply
    84,077.75x = 115,961.65 × 53,865.87
  4. Step 4: Simplify right side
    84,077.75x = 6,246,375,163.89
  5. Step 5: Solve for x
    x = 6,246,375,163.89/84,077.75
  6. Step 6: Final answer
    x = 74,292.84

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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.