Home / 49,021.56-67,640.13-30,148.02

Finding the Fourth Proportional to 49,021.56, 67,640.13 and 30,148.02

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Solution

The fourth proportional to 49,021.56, 67,640.13 and 30,148.02 is: 41,598.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,021.56 : 67,640.13 = 30,148.02 : x
  2. Step 2: Convert to fraction form
    49,021.56/67,640.13 = 30,148.02/x
  3. Step 3: Cross multiply
    49,021.56x = 67,640.13 × 30,148.02
  4. Step 4: Simplify right side
    49,021.56x = 2,039,215,992.04
  5. Step 5: Solve for x
    x = 2,039,215,992.04/49,021.56
  6. Step 6: Final answer
    x = 41,598.35

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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.