Home / 49,588.20-74,324.70-19,991.40

Finding the Fourth Proportional to 49,588.20, 74,324.70 and 19,991.40

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Solution

The fourth proportional to 49,588.20, 74,324.70 and 19,991.40 is: 29,963.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,588.20 : 74,324.70 = 19,991.40 : x
  2. Step 2: Convert to fraction form
    49,588.20/74,324.70 = 19,991.40/x
  3. Step 3: Cross multiply
    49,588.20x = 74,324.70 × 19,991.40
  4. Step 4: Simplify right side
    49,588.20x = 1,485,854,807.58
  5. Step 5: Solve for x
    x = 1,485,854,807.58/49,588.20
  6. Step 6: Final answer
    x = 29,963.88

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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.