Home / 87,519.69-120,777.89-49,796.37

Finding the Fourth Proportional to 87,519.69, 120,777.89 and 49,796.37

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Solution

The fourth proportional to 87,519.69, 120,777.89 and 49,796.37 is: 68,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,519.69 : 120,777.89 = 49,796.37 : x
  2. Step 2: Convert to fraction form
    87,519.69/120,777.89 = 49,796.37/x
  3. Step 3: Cross multiply
    87,519.69x = 120,777.89 × 49,796.37
  4. Step 4: Simplify right side
    87,519.69x = 6,014,300,249.28
  5. Step 5: Solve for x
    x = 6,014,300,249.28/87,519.69
  6. Step 6: Final answer
    x = 68,719.40

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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.