Home / 85,272.11-127,865.57-49,745.64

Finding the Fourth Proportional to 85,272.11, 127,865.57 and 49,745.64

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Solution

The fourth proportional to 85,272.11, 127,865.57 and 49,745.64 is: 74,593.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,272.11 : 127,865.57 = 49,745.64 : x
  2. Step 2: Convert to fraction form
    85,272.11/127,865.57 = 49,745.64/x
  3. Step 3: Cross multiply
    85,272.11x = 127,865.57 × 49,745.64
  4. Step 4: Simplify right side
    85,272.11x = 6,360,754,364.89
  5. Step 5: Solve for x
    x = 6,360,754,364.89/85,272.11
  6. Step 6: Final answer
    x = 74,593.61

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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.