Home / 87,433.56-120,630.96-51,636.24

Finding the Fourth Proportional to 87,433.56, 120,630.96 and 51,636.24

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Solution

The fourth proportional to 87,433.56, 120,630.96 and 51,636.24 is: 71,241.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,433.56 : 120,630.96 = 51,636.24 : x
  2. Step 2: Convert to fraction form
    87,433.56/120,630.96 = 51,636.24/x
  3. Step 3: Cross multiply
    87,433.56x = 120,630.96 × 51,636.24
  4. Step 4: Simplify right side
    87,433.56x = 6,228,929,201.99
  5. Step 5: Solve for x
    x = 6,228,929,201.99/87,433.56
  6. Step 6: Final answer
    x = 71,241.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.