Home / 81,831.75-112,929.03-49,993.89

Finding the Fourth Proportional to 81,831.75, 112,929.03 and 49,993.89

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Solution

The fourth proportional to 81,831.75, 112,929.03 and 49,993.89 is: 68,992.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,831.75 : 112,929.03 = 49,993.89 : x
  2. Step 2: Convert to fraction form
    81,831.75/112,929.03 = 49,993.89/x
  3. Step 3: Cross multiply
    81,831.75x = 112,929.03 × 49,993.89
  4. Step 4: Simplify right side
    81,831.75x = 5,645,761,503.63
  5. Step 5: Solve for x
    x = 5,645,761,503.63/81,831.75
  6. Step 6: Final answer
    x = 68,992.31

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1.5x scale

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.