Home / 55,972.78-83,970.25-15,992.11

Finding the Fourth Proportional to 55,972.78, 83,970.25 and 15,992.11

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Solution

The fourth proportional to 55,972.78, 83,970.25 and 15,992.11 is: 23,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,972.78 : 83,970.25 = 15,992.11 : x
  2. Step 2: Convert to fraction form
    55,972.78/83,970.25 = 15,992.11/x
  3. Step 3: Cross multiply
    55,972.78x = 83,970.25 × 15,992.11
  4. Step 4: Simplify right side
    55,972.78x = 1,342,861,474.73
  5. Step 5: Solve for x
    x = 1,342,861,474.73/55,972.78
  6. Step 6: Final answer
    x = 23,991.33

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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.