Home / 54,749.34-82,063.80-21,463.20

Finding the Fourth Proportional to 54,749.34, 82,063.80 and 21,463.20

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Solution

The fourth proportional to 54,749.34, 82,063.80 and 21,463.20 is: 32,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,749.34 : 82,063.80 = 21,463.20 : x
  2. Step 2: Convert to fraction form
    54,749.34/82,063.80 = 21,463.20/x
  3. Step 3: Cross multiply
    54,749.34x = 82,063.80 × 21,463.20
  4. Step 4: Simplify right side
    54,749.34x = 1,761,351,752.16
  5. Step 5: Solve for x
    x = 1,761,351,752.16/54,749.34
  6. Step 6: Final answer
    x = 32,171.20

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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.