Home / 82,821.39-124,232.09-54,734.85

Finding the Fourth Proportional to 82,821.39, 124,232.09 and 54,734.85

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Solution

The fourth proportional to 82,821.39, 124,232.09 and 54,734.85 is: 82,102.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,821.39 : 124,232.09 = 54,734.85 : x
  2. Step 2: Convert to fraction form
    82,821.39/124,232.09 = 54,734.85/x
  3. Step 3: Cross multiply
    82,821.39x = 124,232.09 × 54,734.85
  4. Step 4: Simplify right side
    82,821.39x = 6,799,824,537.66
  5. Step 5: Solve for x
    x = 6,799,824,537.66/82,821.39
  6. Step 6: Final answer
    x = 82,102.28

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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.