Home / 54,755.16-82,133.40-21,490.89

Finding the Fourth Proportional to 54,755.16, 82,133.40 and 21,490.89

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Solution

The fourth proportional to 54,755.16, 82,133.40 and 21,490.89 is: 32,236.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,755.16 : 82,133.40 = 21,490.89 : x
  2. Step 2: Convert to fraction form
    54,755.16/82,133.40 = 21,490.89/x
  3. Step 3: Cross multiply
    54,755.16x = 82,133.40 × 21,490.89
  4. Step 4: Simplify right side
    54,755.16x = 1,765,119,864.73
  5. Step 5: Solve for x
    x = 1,765,119,864.73/54,755.16
  6. Step 6: Final answer
    x = 32,236.59

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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.