Home / 54,497.11-81,712.22-21,178.27

Finding the Fourth Proportional to 54,497.11, 81,712.22 and 21,178.27

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Solution

The fourth proportional to 54,497.11, 81,712.22 and 21,178.27 is: 31,754.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,497.11 : 81,712.22 = 21,178.27 : x
  2. Step 2: Convert to fraction form
    54,497.11/81,712.22 = 21,178.27/x
  3. Step 3: Cross multiply
    54,497.11x = 81,712.22 × 21,178.27
  4. Step 4: Simplify right side
    54,497.11x = 1,730,523,404.51
  5. Step 5: Solve for x
    x = 1,730,523,404.51/54,497.11
  6. Step 6: Final answer
    x = 31,754.41

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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.