Home / 55,108.39-82,639.27-19,578.60

Finding the Fourth Proportional to 55,108.39, 82,639.27 and 19,578.60

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Solution

The fourth proportional to 55,108.39, 82,639.27 and 19,578.60 is: 29,359.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,108.39 : 82,639.27 = 19,578.60 : x
  2. Step 2: Convert to fraction form
    55,108.39/82,639.27 = 19,578.60/x
  3. Step 3: Cross multiply
    55,108.39x = 82,639.27 × 19,578.60
  4. Step 4: Simplify right side
    55,108.39x = 1,617,961,211.62
  5. Step 5: Solve for x
    x = 1,617,961,211.62/55,108.39
  6. Step 6: Final answer
    x = 29,359.62

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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.