Home / 55,091.18-82,648.38-28,788.86

Finding the Fourth Proportional to 55,091.18, 82,648.38 and 28,788.86

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Solution

The fourth proportional to 55,091.18, 82,648.38 and 28,788.86 is: 43,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,091.18 : 82,648.38 = 28,788.86 : x
  2. Step 2: Convert to fraction form
    55,091.18/82,648.38 = 28,788.86/x
  3. Step 3: Cross multiply
    55,091.18x = 82,648.38 × 28,788.86
  4. Step 4: Simplify right side
    55,091.18x = 2,379,352,641.05
  5. Step 5: Solve for x
    x = 2,379,352,641.05/55,091.18
  6. Step 6: Final answer
    x = 43,189.36

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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.