Home / 56,077.75-84,092.00-20,992.80

Finding the Fourth Proportional to 56,077.75, 84,092.00 and 20,992.80

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Solution

The fourth proportional to 56,077.75, 84,092.00 and 20,992.80 is: 31,479.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,077.75 : 84,092.00 = 20,992.80 : x
  2. Step 2: Convert to fraction form
    56,077.75/84,092.00 = 20,992.80/x
  3. Step 3: Cross multiply
    56,077.75x = 84,092.00 × 20,992.80
  4. Step 4: Simplify right side
    56,077.75x = 1,765,326,590.08
  5. Step 5: Solve for x
    x = 1,765,326,590.08/56,077.75
  6. Step 6: Final answer
    x = 31,479.98

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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.