Home / 82,790.52-124,204.08-30,199.82

Finding the Fourth Proportional to 82,790.52, 124,204.08 and 30,199.82

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Solution

The fourth proportional to 82,790.52, 124,204.08 and 30,199.82 is: 45,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,790.52 : 124,204.08 = 30,199.82 : x
  2. Step 2: Convert to fraction form
    82,790.52/124,204.08 = 30,199.82/x
  3. Step 3: Cross multiply
    82,790.52x = 124,204.08 × 30,199.82
  4. Step 4: Simplify right side
    82,790.52x = 3,750,940,859.27
  5. Step 5: Solve for x
    x = 3,750,940,859.27/82,790.52
  6. Step 6: Final answer
    x = 45,306.41

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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.