Home / 82,845.20-124,235.40-30,227.60

Finding the Fourth Proportional to 82,845.20, 124,235.40 and 30,227.60

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Solution

The fourth proportional to 82,845.20, 124,235.40 and 30,227.60 is: 45,329.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,845.20 : 124,235.40 = 30,227.60 : x
  2. Step 2: Convert to fraction form
    82,845.20/124,235.40 = 30,227.60/x
  3. Step 3: Cross multiply
    82,845.20x = 124,235.40 × 30,227.60
  4. Step 4: Simplify right side
    82,845.20x = 3,755,337,977.04
  5. Step 5: Solve for x
    x = 3,755,337,977.04/82,845.20
  6. Step 6: Final answer
    x = 45,329.58

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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.