Home / 54,351.48-81,513.54-21,060.12

Finding the Fourth Proportional to 54,351.48, 81,513.54 and 21,060.12

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Solution

The fourth proportional to 54,351.48, 81,513.54 and 21,060.12 is: 31,584.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,351.48 : 81,513.54 = 21,060.12 : x
  2. Step 2: Convert to fraction form
    54,351.48/81,513.54 = 21,060.12/x
  3. Step 3: Cross multiply
    54,351.48x = 81,513.54 × 21,060.12
  4. Step 4: Simplify right side
    54,351.48x = 1,716,684,934.02
  5. Step 5: Solve for x
    x = 1,716,684,934.02/54,351.48
  6. Step 6: Final answer
    x = 31,584.88

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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.