Home / 79,840.50-119,760.27-20,676.02

Finding the Fourth Proportional to 79,840.50, 119,760.27 and 20,676.02

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Solution

The fourth proportional to 79,840.50, 119,760.27 and 20,676.02 is: 31,013.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,840.50 : 119,760.27 = 20,676.02 : x
  2. Step 2: Convert to fraction form
    79,840.50/119,760.27 = 20,676.02/x
  3. Step 3: Cross multiply
    79,840.50x = 119,760.27 × 20,676.02
  4. Step 4: Simplify right side
    79,840.50x = 2,476,165,737.73
  5. Step 5: Solve for x
    x = 2,476,165,737.73/79,840.50
  6. Step 6: Final answer
    x = 31,013.91

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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.