Home / 54,433.80-81,635.28-21,146.76

Finding the Fourth Proportional to 54,433.80, 81,635.28 and 21,146.76

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Solution

The fourth proportional to 54,433.80, 81,635.28 and 21,146.76 is: 31,714.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,433.80 : 81,635.28 = 21,146.76 : x
  2. Step 2: Convert to fraction form
    54,433.80/81,635.28 = 21,146.76/x
  3. Step 3: Cross multiply
    54,433.80x = 81,635.28 × 21,146.76
  4. Step 4: Simplify right side
    54,433.80x = 1,726,321,673.69
  5. Step 5: Solve for x
    x = 1,726,321,673.69/54,433.80
  6. Step 6: Final answer
    x = 31,714.15

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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.