Home / 52,299.06-78,447.90-12,856.54

Finding the Fourth Proportional to 52,299.06, 78,447.90 and 12,856.54

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Solution

The fourth proportional to 52,299.06, 78,447.90 and 12,856.54 is: 19,284.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,299.06 : 78,447.90 = 12,856.54 : x
  2. Step 2: Convert to fraction form
    52,299.06/78,447.90 = 12,856.54/x
  3. Step 3: Cross multiply
    52,299.06x = 78,447.90 × 12,856.54
  4. Step 4: Simplify right side
    52,299.06x = 1,008,568,564.27
  5. Step 5: Solve for x
    x = 1,008,568,564.27/52,299.06
  6. Step 6: Final answer
    x = 19,284.64

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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.