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Finding the Fourth Proportional to 56,077.84, 84,092.14 and 20,992.89

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Solution

The fourth proportional to 56,077.84, 84,092.14 and 20,992.89 is: 31,480.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,077.84 : 84,092.14 = 20,992.89 : x
  2. Step 2: Convert to fraction form
    56,077.84/84,092.14 = 20,992.89/x
  3. Step 3: Cross multiply
    56,077.84x = 84,092.14 × 20,992.89
  4. Step 4: Simplify right side
    56,077.84x = 1,765,337,044.88
  5. Step 5: Solve for x
    x = 1,765,337,044.88/56,077.84
  6. Step 6: Final answer
    x = 31,480.12

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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.