Home / 72,180.14-108,276.25-18,872.02

Finding the Fourth Proportional to 72,180.14, 108,276.25 and 18,872.02

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Solution

The fourth proportional to 72,180.14, 108,276.25 and 18,872.02 is: 28,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,180.14 : 108,276.25 = 18,872.02 : x
  2. Step 2: Convert to fraction form
    72,180.14/108,276.25 = 18,872.02/x
  3. Step 3: Cross multiply
    72,180.14x = 108,276.25 × 18,872.02
  4. Step 4: Simplify right side
    72,180.14x = 2,043,391,014.14
  5. Step 5: Solve for x
    x = 2,043,391,014.14/72,180.14
  6. Step 6: Final answer
    x = 28,309.60

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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.