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Finding the Fourth Proportional to 55,065.30, 82,601.09 and 15,619.32

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Solution

The fourth proportional to 55,065.30, 82,601.09 and 15,619.32 is: 23,429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,065.30 : 82,601.09 = 15,619.32 : x
  2. Step 2: Convert to fraction form
    55,065.30/82,601.09 = 15,619.32/x
  3. Step 3: Cross multiply
    55,065.30x = 82,601.09 × 15,619.32
  4. Step 4: Simplify right side
    55,065.30x = 1,290,172,778.96
  5. Step 5: Solve for x
    x = 1,290,172,778.96/55,065.30
  6. Step 6: Final answer
    x = 23,429.87

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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.