Home / 71,586.28-107,305.60-51,815.80

Finding the Fourth Proportional to 71,586.28, 107,305.60 and 51,815.80

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Solution

The fourth proportional to 71,586.28, 107,305.60 and 51,815.80 is: 77,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,586.28 : 107,305.60 = 51,815.80 : x
  2. Step 2: Convert to fraction form
    71,586.28/107,305.60 = 51,815.80/x
  3. Step 3: Cross multiply
    71,586.28x = 107,305.60 × 51,815.80
  4. Step 4: Simplify right side
    71,586.28x = 5,560,125,508.48
  5. Step 5: Solve for x
    x = 5,560,125,508.48/71,586.28
  6. Step 6: Final answer
    x = 77,670.27

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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.