Home / 49,974.48-74,939.28-18,787.68

Finding the Fourth Proportional to 49,974.48, 74,939.28 and 18,787.68

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Solution

The fourth proportional to 49,974.48, 74,939.28 and 18,787.68 is: 28,173.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,974.48 : 74,939.28 = 18,787.68 : x
  2. Step 2: Convert to fraction form
    49,974.48/74,939.28 = 18,787.68/x
  3. Step 3: Cross multiply
    49,974.48x = 74,939.28 × 18,787.68
  4. Step 4: Simplify right side
    49,974.48x = 1,407,935,212.07
  5. Step 5: Solve for x
    x = 1,407,935,212.07/49,974.48
  6. Step 6: Final answer
    x = 28,173.08

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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.