Home / 79,772.45-119,622.09-27,160.52

Finding the Fourth Proportional to 79,772.45, 119,622.09 and 27,160.52

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Solution

The fourth proportional to 79,772.45, 119,622.09 and 27,160.52 is: 40,728.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,772.45 : 119,622.09 = 27,160.52 : x
  2. Step 2: Convert to fraction form
    79,772.45/119,622.09 = 27,160.52/x
  3. Step 3: Cross multiply
    79,772.45x = 119,622.09 × 27,160.52
  4. Step 4: Simplify right side
    79,772.45x = 3,248,998,167.89
  5. Step 5: Solve for x
    x = 3,248,998,167.89/79,772.45
  6. Step 6: Final answer
    x = 40,728.32

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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.