Home / 49,428.46-74,142.11-19,845.77

Finding the Fourth Proportional to 49,428.46, 74,142.11 and 19,845.77

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Solution

The fourth proportional to 49,428.46, 74,142.11 and 19,845.77 is: 29,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,428.46 : 74,142.11 = 19,845.77 : x
  2. Step 2: Convert to fraction form
    49,428.46/74,142.11 = 19,845.77/x
  3. Step 3: Cross multiply
    49,428.46x = 74,142.11 × 19,845.77
  4. Step 4: Simplify right side
    49,428.46x = 1,471,407,497.34
  5. Step 5: Solve for x
    x = 1,471,407,497.34/49,428.46
  6. Step 6: Final answer
    x = 29,768.43

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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.