Home / 84,443.24-126,603.42-54,890.60

Finding the Fourth Proportional to 84,443.24, 126,603.42 and 54,890.60

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Solution

The fourth proportional to 84,443.24, 126,603.42 and 54,890.60 is: 82,295.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,443.24 : 126,603.42 = 54,890.60 : x
  2. Step 2: Convert to fraction form
    84,443.24/126,603.42 = 54,890.60/x
  3. Step 3: Cross multiply
    84,443.24x = 126,603.42 × 54,890.60
  4. Step 4: Simplify right side
    84,443.24x = 6,949,337,685.85
  5. Step 5: Solve for x
    x = 6,949,337,685.85/84,443.24
  6. Step 6: Final answer
    x = 82,295.96

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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.