Home / 83,932.58-115,790.18-55,215.29

Finding the Fourth Proportional to 83,932.58, 115,790.18 and 55,215.29

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Solution

The fourth proportional to 83,932.58, 115,790.18 and 55,215.29 is: 76,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,932.58 : 115,790.18 = 55,215.29 : x
  2. Step 2: Convert to fraction form
    83,932.58/115,790.18 = 55,215.29/x
  3. Step 3: Cross multiply
    83,932.58x = 115,790.18 × 55,215.29
  4. Step 4: Simplify right side
    83,932.58x = 6,393,388,381.25
  5. Step 5: Solve for x
    x = 6,393,388,381.25/83,932.58
  6. Step 6: Final answer
    x = 76,172.90

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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.