Home / 71,147.58-106,696.20-31,185.96

Finding the Fourth Proportional to 71,147.58, 106,696.20 and 31,185.96

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Solution

The fourth proportional to 71,147.58, 106,696.20 and 31,185.96 is: 46,767.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,147.58 : 106,696.20 = 31,185.96 : x
  2. Step 2: Convert to fraction form
    71,147.58/106,696.20 = 31,185.96/x
  3. Step 3: Cross multiply
    71,147.58x = 106,696.20 × 31,185.96
  4. Step 4: Simplify right side
    71,147.58x = 3,327,423,425.35
  5. Step 5: Solve for x
    x = 3,327,423,425.35/71,147.58
  6. Step 6: Final answer
    x = 46,767.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.