Home / 51,408.60-77,103.18-21,827.40

Finding the Fourth Proportional to 51,408.60, 77,103.18 and 21,827.40

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Solution

The fourth proportional to 51,408.60, 77,103.18 and 21,827.40 is: 32,736.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,408.60 : 77,103.18 = 21,827.40 : x
  2. Step 2: Convert to fraction form
    51,408.60/77,103.18 = 21,827.40/x
  3. Step 3: Cross multiply
    51,408.60x = 77,103.18 × 21,827.40
  4. Step 4: Simplify right side
    51,408.60x = 1,682,961,951.13
  5. Step 5: Solve for x
    x = 1,682,961,951.13/51,408.60
  6. Step 6: Final answer
    x = 32,736.97

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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.