Home / 85,238.21-127,829.66-40,252.61

Finding the Fourth Proportional to 85,238.21, 127,829.66 and 40,252.61

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Solution

The fourth proportional to 85,238.21, 127,829.66 and 40,252.61 is: 60,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,238.21 : 127,829.66 = 40,252.61 : x
  2. Step 2: Convert to fraction form
    85,238.21/127,829.66 = 40,252.61/x
  3. Step 3: Cross multiply
    85,238.21x = 127,829.66 × 40,252.61
  4. Step 4: Simplify right side
    85,238.21x = 5,145,477,568.72
  5. Step 5: Solve for x
    x = 5,145,477,568.72/85,238.21
  6. Step 6: Final answer
    x = 60,365.85

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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.