Home / 87,918.28-131,849.58-28,740.28

Finding the Fourth Proportional to 87,918.28, 131,849.58 and 28,740.28

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Solution

The fourth proportional to 87,918.28, 131,849.58 and 28,740.28 is: 43,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,918.28 : 131,849.58 = 28,740.28 : x
  2. Step 2: Convert to fraction form
    87,918.28/131,849.58 = 28,740.28/x
  3. Step 3: Cross multiply
    87,918.28x = 131,849.58 × 28,740.28
  4. Step 4: Simplify right side
    87,918.28x = 3,789,393,847.08
  5. Step 5: Solve for x
    x = 3,789,393,847.08/87,918.28
  6. Step 6: Final answer
    x = 43,101.32

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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.