Home / 49,920.92-74,860.58-20,318.66

Finding the Fourth Proportional to 49,920.92, 74,860.58 and 20,318.66

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Solution

The fourth proportional to 49,920.92, 74,860.58 and 20,318.66 is: 30,469.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,920.92 : 74,860.58 = 20,318.66 : x
  2. Step 2: Convert to fraction form
    49,920.92/74,860.58 = 20,318.66/x
  3. Step 3: Cross multiply
    49,920.92x = 74,860.58 × 20,318.66
  4. Step 4: Simplify right side
    49,920.92x = 1,521,066,196.53
  5. Step 5: Solve for x
    x = 1,521,066,196.53/49,920.92
  6. Step 6: Final answer
    x = 30,469.52

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1.5x scale

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.