Home / 79,353.24-119,029.32-20,188.38

Finding the Fourth Proportional to 79,353.24, 119,029.32 and 20,188.38

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Solution

The fourth proportional to 79,353.24, 119,029.32 and 20,188.38 is: 30,282.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,353.24 : 119,029.32 = 20,188.38 : x
  2. Step 2: Convert to fraction form
    79,353.24/119,029.32 = 20,188.38/x
  3. Step 3: Cross multiply
    79,353.24x = 119,029.32 × 20,188.38
  4. Step 4: Simplify right side
    79,353.24x = 2,403,009,143.30
  5. Step 5: Solve for x
    x = 2,403,009,143.30/79,353.24
  6. Step 6: Final answer
    x = 30,282.43

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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.