Home / 87,851.80-131,777.70-28,673.20

Finding the Fourth Proportional to 87,851.80, 131,777.70 and 28,673.20

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Solution

The fourth proportional to 87,851.80, 131,777.70 and 28,673.20 is: 43,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,851.80 : 131,777.70 = 28,673.20 : x
  2. Step 2: Convert to fraction form
    87,851.80/131,777.70 = 28,673.20/x
  3. Step 3: Cross multiply
    87,851.80x = 131,777.70 × 28,673.20
  4. Step 4: Simplify right side
    87,851.80x = 3,778,488,347.64
  5. Step 5: Solve for x
    x = 3,778,488,347.64/87,851.80
  6. Step 6: Final answer
    x = 43,009.80

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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.