Home / 112,491.40-168,740.13-49,279

Finding the Fourth Proportional to 112,491.40, 168,740.13 and 49,279

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Solution

The fourth proportional to 112,491.40, 168,740.13 and 49,279 is: 73,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,491.40 : 168,740.13 = 49,279 : x
  2. Step 2: Convert to fraction form
    112,491.40/168,740.13 = 49,279/x
  3. Step 3: Cross multiply
    112,491.40x = 168,740.13 × 49,279
  4. Step 4: Simplify right side
    112,491.40x = 8,315,344,866.27
  5. Step 5: Solve for x
    x = 8,315,344,866.27/112,491.40
  6. Step 6: Final answer
    x = 73,919.83

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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.