Home / 84,831.84-116,989.20-54,563.76

Finding the Fourth Proportional to 84,831.84, 116,989.20 and 54,563.76

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Solution

The fourth proportional to 84,831.84, 116,989.20 and 54,563.76 is: 75,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,831.84 : 116,989.20 = 54,563.76 : x
  2. Step 2: Convert to fraction form
    84,831.84/116,989.20 = 54,563.76/x
  3. Step 3: Cross multiply
    84,831.84x = 116,989.20 × 54,563.76
  4. Step 4: Simplify right side
    84,831.84x = 6,383,370,631.39
  5. Step 5: Solve for x
    x = 6,383,370,631.39/84,831.84
  6. Step 6: Final answer
    x = 75,247.34

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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.