Home / 72,176.25-108,245.40-21,563.26

Finding the Fourth Proportional to 72,176.25, 108,245.40 and 21,563.26

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Solution

The fourth proportional to 72,176.25, 108,245.40 and 21,563.26 is: 32,339.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,176.25 : 108,245.40 = 21,563.26 : x
  2. Step 2: Convert to fraction form
    72,176.25/108,245.40 = 21,563.26/x
  3. Step 3: Cross multiply
    72,176.25x = 108,245.40 × 21,563.26
  4. Step 4: Simplify right side
    72,176.25x = 2,334,123,704.00
  5. Step 5: Solve for x
    x = 2,334,123,704.00/72,176.25
  6. Step 6: Final answer
    x = 32,339.22

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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.