Home / 51,279.60-76,953.57-19,715.72

Finding the Fourth Proportional to 51,279.60, 76,953.57 and 19,715.72

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Solution

The fourth proportional to 51,279.60, 76,953.57 and 19,715.72 is: 29,586.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,279.60 : 76,953.57 = 19,715.72 : x
  2. Step 2: Convert to fraction form
    51,279.60/76,953.57 = 19,715.72/x
  3. Step 3: Cross multiply
    51,279.60x = 76,953.57 × 19,715.72
  4. Step 4: Simplify right side
    51,279.60x = 1,517,194,654.35
  5. Step 5: Solve for x
    x = 1,517,194,654.35/51,279.60
  6. Step 6: Final answer
    x = 29,586.71

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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.