Home / 51,311.18-76,974.60-21,729.17

Finding the Fourth Proportional to 51,311.18, 76,974.60 and 21,729.17

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Solution

The fourth proportional to 51,311.18, 76,974.60 and 21,729.17 is: 32,597.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,311.18 : 76,974.60 = 21,729.17 : x
  2. Step 2: Convert to fraction form
    51,311.18/76,974.60 = 21,729.17/x
  3. Step 3: Cross multiply
    51,311.18x = 76,974.60 × 21,729.17
  4. Step 4: Simplify right side
    51,311.18x = 1,672,594,169.08
  5. Step 5: Solve for x
    x = 1,672,594,169.08/51,311.18
  6. Step 6: Final answer
    x = 32,597.07

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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.