Home / 87,829.08-131,760.60-28,648.84

Finding the Fourth Proportional to 87,829.08, 131,760.60 and 28,648.84

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Solution

The fourth proportional to 87,829.08, 131,760.60 and 28,648.84 is: 42,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,829.08 : 131,760.60 = 28,648.84 : x
  2. Step 2: Convert to fraction form
    87,829.08/131,760.60 = 28,648.84/x
  3. Step 3: Cross multiply
    87,829.08x = 131,760.60 × 28,648.84
  4. Step 4: Simplify right side
    87,829.08x = 3,774,788,347.70
  5. Step 5: Solve for x
    x = 3,774,788,347.70/87,829.08
  6. Step 6: Final answer
    x = 42,978.80

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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.