Home / 56,077.85-84,092.15-20,992.89

Finding the Fourth Proportional to 56,077.85, 84,092.15 and 20,992.89

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Solution

The fourth proportional to 56,077.85, 84,092.15 and 20,992.89 is: 31,480.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,077.85 : 84,092.15 = 20,992.89 : x
  2. Step 2: Convert to fraction form
    56,077.85/84,092.15 = 20,992.89/x
  3. Step 3: Cross multiply
    56,077.85x = 84,092.15 × 20,992.89
  4. Step 4: Simplify right side
    56,077.85x = 1,765,337,149.85
  5. Step 5: Solve for x
    x = 1,765,337,149.85/56,077.85
  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.