Home / 72,206.22-108,308.61-54,782.94

Finding the Fourth Proportional to 72,206.22, 108,308.61 and 54,782.94

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Solution

The fourth proportional to 72,206.22, 108,308.61 and 54,782.94 is: 82,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,206.22 : 108,308.61 = 54,782.94 : x
  2. Step 2: Convert to fraction form
    72,206.22/108,308.61 = 54,782.94/x
  3. Step 3: Cross multiply
    72,206.22x = 108,308.61 × 54,782.94
  4. Step 4: Simplify right side
    72,206.22x = 5,933,464,083.11
  5. Step 5: Solve for x
    x = 5,933,464,083.11/72,206.22
  6. Step 6: Final answer
    x = 82,173.86

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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.