Home / 54,953.10-82,432.94-21,219.30

Finding the Fourth Proportional to 54,953.10, 82,432.94 and 21,219.30

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Solution

The fourth proportional to 54,953.10, 82,432.94 and 21,219.30 is: 31,830.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,953.10 : 82,432.94 = 21,219.30 : x
  2. Step 2: Convert to fraction form
    54,953.10/82,432.94 = 21,219.30/x
  3. Step 3: Cross multiply
    54,953.10x = 82,432.94 × 21,219.30
  4. Step 4: Simplify right side
    54,953.10x = 1,749,169,177.65
  5. Step 5: Solve for x
    x = 1,749,169,177.65/54,953.10
  6. Step 6: Final answer
    x = 31,830.22

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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.