Home / 55,149.27-82,731.65-21,872.70

Finding the Fourth Proportional to 55,149.27, 82,731.65 and 21,872.70

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Solution

The fourth proportional to 55,149.27, 82,731.65 and 21,872.70 is: 32,812.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,149.27 : 82,731.65 = 21,872.70 : x
  2. Step 2: Convert to fraction form
    55,149.27/82,731.65 = 21,872.70/x
  3. Step 3: Cross multiply
    55,149.27x = 82,731.65 × 21,872.70
  4. Step 4: Simplify right side
    55,149.27x = 1,809,564,451.59
  5. Step 5: Solve for x
    x = 1,809,564,451.59/55,149.27
  6. Step 6: Final answer
    x = 32,812.12

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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.