Home / 85,239.21-127,831.15-40,253.61

Finding the Fourth Proportional to 85,239.21, 127,831.15 and 40,253.61

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Solution

The fourth proportional to 85,239.21, 127,831.15 and 40,253.61 is: 60,367.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,239.21 : 127,831.15 = 40,253.61 : x
  2. Step 2: Convert to fraction form
    85,239.21/127,831.15 = 40,253.61/x
  3. Step 3: Cross multiply
    85,239.21x = 127,831.15 × 40,253.61
  4. Step 4: Simplify right side
    85,239.21x = 5,145,665,257.95
  5. Step 5: Solve for x
    x = 5,145,665,257.95/85,239.21
  6. Step 6: Final answer
    x = 60,367.35

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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.