Home / 87,513.22-120,765.44-49,274.74

Finding the Fourth Proportional to 87,513.22, 120,765.44 and 49,274.74

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Solution

The fourth proportional to 87,513.22, 120,765.44 and 49,274.74 is: 67,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,513.22 : 120,765.44 = 49,274.74 : x
  2. Step 2: Convert to fraction form
    87,513.22/120,765.44 = 49,274.74/x
  3. Step 3: Cross multiply
    87,513.22x = 120,765.44 × 49,274.74
  4. Step 4: Simplify right side
    87,513.22x = 5,950,685,656.99
  5. Step 5: Solve for x
    x = 5,950,685,656.99/87,513.22
  6. Step 6: Final answer
    x = 67,997.56

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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.