Home / 49,972.62-74,937.06-18,786

Finding the Fourth Proportional to 49,972.62, 74,937.06 and 18,786

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Solution

The fourth proportional to 49,972.62, 74,937.06 and 18,786 is: 28,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,972.62 : 74,937.06 = 18,786 : x
  2. Step 2: Convert to fraction form
    49,972.62/74,937.06 = 18,786/x
  3. Step 3: Cross multiply
    49,972.62x = 74,937.06 × 18,786
  4. Step 4: Simplify right side
    49,972.62x = 1,407,767,609.16
  5. Step 5: Solve for x
    x = 1,407,767,609.16/49,972.62
  6. Step 6: Final answer
    x = 28,170.78

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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.