Home / 54,936-82,355.13-19,867.86

Finding the Fourth Proportional to 54,936, 82,355.13 and 19,867.86

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Solution

The fourth proportional to 54,936, 82,355.13 and 19,867.86 is: 29,784.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,936 : 82,355.13 = 19,867.86 : x
  2. Step 2: Convert to fraction form
    54,936/82,355.13 = 19,867.86/x
  3. Step 3: Cross multiply
    54,936x = 82,355.13 × 19,867.86
  4. Step 4: Simplify right side
    54,936x = 1,636,220,193.12
  5. Step 5: Solve for x
    x = 1,636,220,193.12/54,936
  6. Step 6: Final answer
    x = 29,784.12

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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.