Home / 49,908.96-68,855.22-30,785.40

Finding the Fourth Proportional to 49,908.96, 68,855.22 and 30,785.40

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Solution

The fourth proportional to 49,908.96, 68,855.22 and 30,785.40 is: 42,472.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,908.96 : 68,855.22 = 30,785.40 : x
  2. Step 2: Convert to fraction form
    49,908.96/68,855.22 = 30,785.40/x
  3. Step 3: Cross multiply
    49,908.96x = 68,855.22 × 30,785.40
  4. Step 4: Simplify right side
    49,908.96x = 2,119,735,489.79
  5. Step 5: Solve for x
    x = 2,119,735,489.79/49,908.96
  6. Step 6: Final answer
    x = 42,472.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.