Home / 55,105.32-82,660.14-15,665.88

Finding the Fourth Proportional to 55,105.32, 82,660.14 and 15,665.88

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Solution

The fourth proportional to 55,105.32, 82,660.14 and 15,665.88 is: 23,499.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,105.32 : 82,660.14 = 15,665.88 : x
  2. Step 2: Convert to fraction form
    55,105.32/82,660.14 = 15,665.88/x
  3. Step 3: Cross multiply
    55,105.32x = 82,660.14 × 15,665.88
  4. Step 4: Simplify right side
    55,105.32x = 1,294,943,834.02
  5. Step 5: Solve for x
    x = 1,294,943,834.02/55,105.32
  6. Step 6: Final answer
    x = 23,499.43

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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.