Home / 87,835.08-131,769.60-28,654.84

Finding the Fourth Proportional to 87,835.08, 131,769.60 and 28,654.84

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Solution

The fourth proportional to 87,835.08, 131,769.60 and 28,654.84 is: 42,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,835.08 : 131,769.60 = 28,654.84 : x
  2. Step 2: Convert to fraction form
    87,835.08/131,769.60 = 28,654.84/x
  3. Step 3: Cross multiply
    87,835.08x = 131,769.60 × 28,654.84
  4. Step 4: Simplify right side
    87,835.08x = 3,775,836,804.86
  5. Step 5: Solve for x
    x = 3,775,836,804.86/87,835.08
  6. Step 6: Final answer
    x = 42,987.80

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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.