Home / 72,162.24-108,252-25,405.44

Finding the Fourth Proportional to 72,162.24, 108,252 and 25,405.44

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Solution

The fourth proportional to 72,162.24, 108,252 and 25,405.44 is: 38,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,162.24 : 108,252 = 25,405.44 : x
  2. Step 2: Convert to fraction form
    72,162.24/108,252 = 25,405.44/x
  3. Step 3: Cross multiply
    72,162.24x = 108,252 × 25,405.44
  4. Step 4: Simplify right side
    72,162.24x = 2,750,189,690.88
  5. Step 5: Solve for x
    x = 2,750,189,690.88/72,162.24
  6. Step 6: Final answer
    x = 38,111.20

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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.