Home / 87,986.70-131,947.65-28,824.30

Finding the Fourth Proportional to 87,986.70, 131,947.65 and 28,824.30

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Solution

The fourth proportional to 87,986.70, 131,947.65 and 28,824.30 is: 43,225.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,986.70 : 131,947.65 = 28,824.30 : x
  2. Step 2: Convert to fraction form
    87,986.70/131,947.65 = 28,824.30/x
  3. Step 3: Cross multiply
    87,986.70x = 131,947.65 × 28,824.30
  4. Step 4: Simplify right side
    87,986.70x = 3,803,298,647.90
  5. Step 5: Solve for x
    x = 3,803,298,647.90/87,986.70
  6. Step 6: Final answer
    x = 43,225.84

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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.