Home / 48,781.49-73,172.30-13,721.18

Finding the Fourth Proportional to 48,781.49, 73,172.30 and 13,721.18

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Solution

The fourth proportional to 48,781.49, 73,172.30 and 13,721.18 is: 20,581.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,781.49 : 73,172.30 = 13,721.18 : x
  2. Step 2: Convert to fraction form
    48,781.49/73,172.30 = 13,721.18/x
  3. Step 3: Cross multiply
    48,781.49x = 73,172.30 × 13,721.18
  4. Step 4: Simplify right side
    48,781.49x = 1,004,009,864.85
  5. Step 5: Solve for x
    x = 1,004,009,864.85/48,781.49
  6. Step 6: Final answer
    x = 20,581.78

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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.