Home / 49,747.68-74,622.24-12,811.68

Finding the Fourth Proportional to 49,747.68, 74,622.24 and 12,811.68

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Solution

The fourth proportional to 49,747.68, 74,622.24 and 12,811.68 is: 19,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,747.68 : 74,622.24 = 12,811.68 : x
  2. Step 2: Convert to fraction form
    49,747.68/74,622.24 = 12,811.68/x
  3. Step 3: Cross multiply
    49,747.68x = 74,622.24 × 12,811.68
  4. Step 4: Simplify right side
    49,747.68x = 956,036,259.76
  5. Step 5: Solve for x
    x = 956,036,259.76/49,747.68
  6. Step 6: Final answer
    x = 19,217.71

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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.