Home / 71,771.31-107,586.70-26,759.72

Finding the Fourth Proportional to 71,771.31, 107,586.70 and 26,759.72

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Solution

The fourth proportional to 71,771.31, 107,586.70 and 26,759.72 is: 40,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,771.31 : 107,586.70 = 26,759.72 : x
  2. Step 2: Convert to fraction form
    71,771.31/107,586.70 = 26,759.72/x
  3. Step 3: Cross multiply
    71,771.31x = 107,586.70 × 26,759.72
  4. Step 4: Simplify right side
    71,771.31x = 2,878,990,169.79
  5. Step 5: Solve for x
    x = 2,878,990,169.79/71,771.31
  6. Step 6: Final answer
    x = 40,113.38

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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.