Home / 52,163.82-78,246.54-12,721.68

Finding the Fourth Proportional to 52,163.82, 78,246.54 and 12,721.68

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Solution

The fourth proportional to 52,163.82, 78,246.54 and 12,721.68 is: 19,082.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,163.82 : 78,246.54 = 12,721.68 : x
  2. Step 2: Convert to fraction form
    52,163.82/78,246.54 = 12,721.68/x
  3. Step 3: Cross multiply
    52,163.82x = 78,246.54 × 12,721.68
  4. Step 4: Simplify right side
    52,163.82x = 995,427,442.99
  5. Step 5: Solve for x
    x = 995,427,442.99/52,163.82
  6. Step 6: Final answer
    x = 19,082.72

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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.