Home / 84,846.40-117,035.68-54,621.76

Finding the Fourth Proportional to 84,846.40, 117,035.68 and 54,621.76

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Solution

The fourth proportional to 84,846.40, 117,035.68 and 54,621.76 is: 75,344.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,846.40 : 117,035.68 = 54,621.76 : x
  2. Step 2: Convert to fraction form
    84,846.40/117,035.68 = 54,621.76/x
  3. Step 3: Cross multiply
    84,846.40x = 117,035.68 × 54,621.76
  4. Step 4: Simplify right side
    84,846.40x = 6,392,694,824.40
  5. Step 5: Solve for x
    x = 6,392,694,824.40/84,846.40
  6. Step 6: Final answer
    x = 75,344.33

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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.