Home / 85,170.72-117,509.58-49,353.82

Finding the Fourth Proportional to 85,170.72, 117,509.58 and 49,353.82

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Solution

The fourth proportional to 85,170.72, 117,509.58 and 49,353.82 is: 68,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,170.72 : 117,509.58 = 49,353.82 : x
  2. Step 2: Convert to fraction form
    85,170.72/117,509.58 = 49,353.82/x
  3. Step 3: Cross multiply
    85,170.72x = 117,509.58 × 49,353.82
  4. Step 4: Simplify right side
    85,170.72x = 5,799,546,659.60
  5. Step 5: Solve for x
    x = 5,799,546,659.60/85,170.72
  6. Step 6: Final answer
    x = 68,093.20

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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.