Home / 54,690.62-82,033.16-21,416.78

Finding the Fourth Proportional to 54,690.62, 82,033.16 and 21,416.78

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Solution

The fourth proportional to 54,690.62, 82,033.16 and 21,416.78 is: 32,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,690.62 : 82,033.16 = 21,416.78 : x
  2. Step 2: Convert to fraction form
    54,690.62/82,033.16 = 21,416.78/x
  3. Step 3: Cross multiply
    54,690.62x = 82,033.16 × 21,416.78
  4. Step 4: Simplify right side
    54,690.62x = 1,756,886,140.42
  5. Step 5: Solve for x
    x = 1,756,886,140.42/54,690.62
  6. Step 6: Final answer
    x = 32,124.09

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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.