Home / 91,831.94-126,721.12-51,537.92

Finding the Fourth Proportional to 91,831.94, 126,721.12 and 51,537.92

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Solution

The fourth proportional to 91,831.94, 126,721.12 and 51,537.92 is: 71,118.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,831.94 : 126,721.12 = 51,537.92 : x
  2. Step 2: Convert to fraction form
    91,831.94/126,721.12 = 51,537.92/x
  3. Step 3: Cross multiply
    91,831.94x = 126,721.12 × 51,537.92
  4. Step 4: Simplify right side
    91,831.94x = 6,530,942,944.87
  5. Step 5: Solve for x
    x = 6,530,942,944.87/91,831.94
  6. Step 6: Final answer
    x = 71,118.43

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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.