Home / 84,921.84-117,159.48-54,704.82

Finding the Fourth Proportional to 84,921.84, 117,159.48 and 54,704.82

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Solution

The fourth proportional to 84,921.84, 117,159.48 and 54,704.82 is: 75,471.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,921.84 : 117,159.48 = 54,704.82 : x
  2. Step 2: Convert to fraction form
    84,921.84/117,159.48 = 54,704.82/x
  3. Step 3: Cross multiply
    84,921.84x = 117,159.48 × 54,704.82
  4. Step 4: Simplify right side
    84,921.84x = 6,409,188,264.69
  5. Step 5: Solve for x
    x = 6,409,188,264.69/84,921.84
  6. Step 6: Final answer
    x = 75,471.61

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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.