Home / 49,820.91-74,732.81-18,650.19

Finding the Fourth Proportional to 49,820.91, 74,732.81 and 18,650.19

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Solution

The fourth proportional to 49,820.91, 74,732.81 and 18,650.19 is: 27,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,820.91 : 74,732.81 = 18,650.19 : x
  2. Step 2: Convert to fraction form
    49,820.91/74,732.81 = 18,650.19/x
  3. Step 3: Cross multiply
    49,820.91x = 74,732.81 × 18,650.19
  4. Step 4: Simplify right side
    49,820.91x = 1,393,781,012.48
  5. Step 5: Solve for x
    x = 1,393,781,012.48/49,820.91
  6. Step 6: Final answer
    x = 27,975.82

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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.